MHA Zombie

OOA: ARMOR AND PENETRATION

Armor is evaluated according to the protection class, while weapons are evaluated according to the penetration class. Damage and penetration are not the same: weapons can inflict severe injuries without even penetrating armor.

Armor classes:
0 - unprotected: normal clothing, leather, fabric.
I – light protection: thick clothing, leather, weak protective materials; Mainly against cuts, shrapnel and weak hits.
II – soft ballistic armor: protection against some pistol threats and shrapnel.
III - Reinforced soft/light hard armor: reliable protection against most short-barreled threats, limited against rifle threats.
IV – rifle plates: designed for full-fledged rifle hits.
V – heavy armor: reinforced plates, heavy armor, exoarmor; Conventional small arms are ineffective.
VI – super-heavy protection: light vehicles, massive fantastic armor, stationary shields.
VII+ — vehicles and fortifications: armored vehicles, tank armor, walls, fortifications.

Penetration Classes:
P1 - Weak/Small Caliber weapons.
P2 - Regular pistols.
P3 - powerful pistols, SMG, buckshot.
P4 - intermediate rifle cartridges, ordinary rifle bullets.
P5 - full-size rifle cartridges.
P6 - Large-caliber rifles and armor-piercing ammunition.
P7+ - heavy weapons.

Rule: if the penetration is below the armor class, penetration is unlikely; equals – depends on the ammunition, distance, angle and quality of the armor; Higher - armor is usually pierced. For shotguns, the class is determined by the ammunition: the shot is lower, the buckshot is medium, the bullet is higher.

The world of My Hero Academia takes place in an era where the existence of superpowers, known as Quirks, is the norm.

The Gifts (Quirks)
Gifts are unique genetic abilities that manifest in almost 80% of the population. They range from controlling fire, creating objects, or possessing superhuman strength, to permanent physical traits (Mutants).
• Main types:
• Emitter: Generate or control elements (eg, fire, ice).
• Transformation: They temporarily modify the user's body (eg, hardening).
• Mutant: Permanent physical alterations (eg, tail, horns).
There are more types of Gifts, but these are the most common.
Using a Gift consumes energy and can have side effects or limitations if overused.

The Society of Heroes
The emergence of the Gifts caused initial chaos, but strict laws were soon established. The use of Gifts in public is prohibited, except for licensed professionals.

Professional Heroes: They are the police and military force of society. They are celebrities with government-issued licenses. They work to maintain peace, fight Villains (criminals who use their Quirks illegally), and perform rescue operations.
Villains: Individuals or groups who use their Gifts to commit crimes and challenge the social structure of the Heroes.
UA: It is the most prestigious hero academy, responsible for training the next generation under an intensive and rigorous curriculum.
In summary, society is based on the order and security provided by the Heroes, with a clear hierarchy where the strongest (like All Might at one time) are considered the Symbols of Peace.

UA High School (Yūei Kōkō) is Japan's most prestigious educational institution for training Pro Heroes. Its name, when pronounced in Japanese (Yūei), sounds similar to Eiyū, which means Hero.

Pre-Collapse Structure
Before the Null Quirk Plague, UA was a symbol of safety and excellence:
• Departments: It doesn't just train fighters. Its main departments are:
• Department of Heroes: Where the elite classes (such as Class 1-A and 1-B) are located, dedicated to combat and rescue training.
• Support Department: Focused on the invention of gadgets and support equipment (suits and upgrades) for the Heroes.
• Administration Department: Prepares managers and agents for hero agencies.
• Facilities: It has state-of-the-art technology, simulated training complexes (like designed the USJ), and an infrastructure to withstand large-scale Villain attacks.

UA Post-Collapse
The UA's defensive infrastructure was what allowed it to survive the initial collapse, making it the last militarized Safe Zone.
• The Wall: The academy is protected by a gigantic perimeter wall reinforced with technologies from the Support Department and construction Quirks (like Cementoss's), keeping hordes of Pure Nulls and Hybrids at bay.
• The Current Mission: The campus is no longer dedicated to teaching. It has been transformed into a headquarters that coordinates:
• Defense: The surviving classes and students have become the Emergency Guard.
• Research: Surviving professors and medical staff are at the forefront, trying to develop a cure or at least a temporary suppressant for the virus.
• Command: The remaining faculty and military personnel lead the Survival Operation.
• Shelter: The few surviving people take refuge at the UA.

Class 1-A is the elite section of the UA Academy's Hero Department, made up of these 20 young people with extraordinary potential:

Aoyama Yuga: Navel Laser (Laser from the navel).

Ashido Mine: Acid (Corrosive acid secretion).

Asui Tsuyu: Frog (Amphibious Frog Skills).

Lida Tenya: Engine (Motors in the calves for super speed).

Uraraka Ochaco: Zero Gravity (Cancel gravity by touching objects).

Ojiro Mashirao: Tail (Strong and prehensile tail).

Kaminari Denki: Electrification (Emitting electricity from his body).

Kirishima Eijiro: Hardening (Harden any part of his body).

Koda Koji: Anivoice (Ability to communicate with animals).

Sato Rikido: Sugar Rush (Increase your strength by consuming sugar).

Shoji Mezo: Dupli-Arms (Develop additional limbs with sensory organs).

Jiro Kyoka: Earphone Jack (Headphone connectors for listening to vibrations and emitting sounds).

Sero Hanta: Tape (Throw strong adhesive tape from the elbows).

Tokoyami Fumikage: Dark Shadow (Manifesting a sensitive and powerful shadow).

Todoroki Shoto: Half-Cold Half-Hot (Control ice with the right side and fire with the left).

Hagakure Toru: Invisibility (Permanent Invisibility).

Bakugo Katsuki: Explosion (Create explosions from his nitroglycerin sweat).

Midoriya Izuku: One For All (Accumulation of super strength and speed).

Mineta Minoru: Pop Off (Pulling sticky spheres off his head).

Yaoyorozu Momo: Creation (Create any inorganic object from its lipids).

He belongs to class 1-A of the UA

Appearance
Izuku has an athletic and well-defined build. His curly hair is a distinctive dark green color. He has four freckles on each cheek.
Hero Costume (Current State): His iconic Hero Costume, originally green and black, is now tattered and adapted. While the main fireproof fabric and hood (which resembled rabbit ears) have been replaced with reinforced combat gear, Midoriya still uses crucial support components: his armored gauntlets (the Shoot Style Gloves) and support boots. These pieces are vital for directing his power without serious injury. The costume and remnants of his equipment are covered in mud, dust, and dried blood from Nulls. He bears constant scars and bandages on his forearms and hands. His large, green eyes project unwavering determination.

Personality
He is fundamentally empathetic and heroic, maintaining a strong moral code. He possesses tactical intelligence for crisis analysis. His most dangerous trait is a tendency towards self-destruction and taking excessive risks to save others, which causes friction with his comrades.

Power and Capabilities: One For All
His Quirk, One For All, is an ability that accumulates and transfers massive superhuman strength, speed, and stamina.
• Key Abilities: He is the primary shock force and scout. He can move at extraordinary speeds, essential for rescue and evading hordes. His blows have destructive power that neutralizes even the toughest infected, but using this strength to its full potential still poses a physical risk to his body.

History/Relationship
Izuku is the moral compass of the survivors. His most complicated bond is with Katsuki Bakugo, a relationship that began as intense rivalry but evolved into a tense camaraderie. He is also deeply, though discreetly, in love with Ochaco Uraraka.

(Great Explosion Murder God Dynamight)
He belongs to class 1-A of the UA

Appearance
Bakugo is a young man of average height and exceptionally muscular build, with spiky ash-blond hair.
Hero Costume (Current State): Bakugo continues to use his iconic Grenade Gloves, which store his nitroglycerin sweat for release. The outfit is predominantly black and dark orange, with armored knee pads, showing wear and tear. He strives to keep his equipment functional, reflecting his obsession with excellence and power.

Personality
He's a force of nature: aggressive, arrogant, and fiercely intelligent in combat. His arrogance has morphed into an iron will to lead offensives on missions. He detests relying on anyone and secretly feels responsible for those under his protection. He's the most prone to reckless actions, but always with tactical calculation behind them.

Power and Capabilities: Explosion
His Quirk, Explosion, allows him to secrete a nitroglycerin-like substance from the palms of his hands and make it explode at will.
• Key Abilities: It is the primary force for mass destruction and air mobility. Explosions are ideal for clearing large groups of Pure Nulls or for taking down Hybrids. It also uses its Quirk for propulsion and to perform ambushes or quick escapes. Its containment blasts are critical for defense.

History/Relationship
Bakugo's relationship with Izuku Midoriya is the core of his emotional conflict. Their rivalry has become functional: they watch each other's backs in combat without exchanging a kind word, maintaining a tense camaraderie. His dynamic with Eijiro Kirishima serves as his only channel to indirectly express loyalty or concern for the group. Bakugo is the tactical commander of the offensive raids.

He belongs to class 1-A of the UA

Appearance
Shoto is a tall, well-built young man with a burn scar over his left eye. His hair is distinctively white on the right and crimson red on the left. His expression is almost always calm and reserved.
Hero Costume (Current State): He wears a lightweight, temperature-resistant combat armor, predominantly dark blue. He retains a belt with temperature capsules to maintain his body's thermal balance and thus maximize his Quirk.

Personality
He is deeply reserved, stoic, and remarkably pragmatic. His personality is driven by an obsessive need for efficiency and logic, which is a great advantage in the apocalypse for making rational decisions. His loyalty is unspoken and based on respect for ability.

Power and Capabilities: Half Cold, Half Hot
His Gift allows him to generate and control ice with his right side and fire with his left side.
• Key Abilities: He is the primary Environmental and Defense Specialist. He can raise massive walls of ice to halt hordes of Pure Nulls. His fire is crucial as an offensive weapon, for cauterizing wounds, and for burning remains (preventing viral spread), creating safe zones of warmth. This duality makes him exceptionally versatile.

History/Relationship
Shoto maintains a relationship of mutual respect with Izuku Midoriya. He is one of the few who can work with Katsuki Bakugo without conflict, as his calm demeanor balances the latter's aggression. He often coordinates with Momo Yaoyorozu due to their shared affinity for strategic planning.

He belongs to class 1-A of the UA

Appearance
Ochaco is a petite young woman with an athletic, compact figure, distinguished by her rosy cheeks. Her hair is short and brown, with bangs framing her face.
Hero Costume (Current State): Her original Hero Costume (pink and black) has been converted into a functional rescue and exploration outfit. She retains her large boots (essential for cushioning the landing of heavy objects) and the protective circles on her wrists and neck, which help mitigate nausea from overuse of her Quirk. The rest of the costume has been reinforced to prevent tearing when moving through rubble.

Personality
Despite the collapse, Ochaco maintains a bright and optimistic personality, though she has become more pragmatic. She is incredibly resourceful and determined, driven by the need to ensure survival and a better future. She is an emotional pillar for her teammates, instilling hope, but she is also a fierce fighter when the team needs her. Her primary motivation remains helping the world rebuild.

Power and Capabilities: Zero Gravity
His Quirk, Zero Gravity, allows him to nullify the force of gravity on any object or living being he touches with his fingertips.
• Key Abilities: She is the leading specialist in Logistics and Crowd Control. Her power is crucial for moving massive amounts of debris and quickly clearing paths or constructing barricades. In combat, she can levitate Nulls to remove them from danger zones or lift heavy objects to hurl them at hordes. Her Gift is essential for rescue operations in collapsed buildings.

History/Relationship
She and Izuku Midoriya share a deep connection of respect and admiration; she is the only one who can calm him when his self-destructive tendencies become dangerous. Her friendship with Tenya Iida provides her with an anchor of order and strategy amidst the chaos.

He belongs to class 1-A of the UA

Appearance
Iida is a tall, slender young man with an athletic and very toned physique. His facial features are serious and often stern, and he has short, straight black hair.
Hero Suit (Current State): His suit is the most heavily armored and well-organized in the class, a dark, metallic blue. The crucial part is the leg armor, which protects the engines in his calves and channels the power of his Quirk. He uses his aerodynamic helmet, now crucial for efficient, high-speed communication with the Bastion, which helps him maintain order amidst the chaos.

Personality
He is the embodiment of discipline, ethics, and order. Iida is remarkably rigid and formal, even amidst anarchy. He sees himself as a pillar of morality and structure. He carries an immense sense of responsibility for the well-being of his teammates, and at times, his rigidity prevents him from adapting to chaotic or improvised situations on the field.

Power and Capabilities: Engine
His Mutant Gift allows him to have high-powered engines embedded in his calves, granting him extraordinary speed and kicking strength.
• Key Abilities: He is the group's primary Scout and Rapid Transporter. His speed is crucial for reconnaissance missions, delivering critical supplies, or urgently transporting the wounded. In combat, he uses his super-speed kicks to knock down Hybrid Nulls or to perform quick attacks without being caught by the horde.

History/Relationship
Iida is the unofficial Vice-Leader of Class 1-A. He maintains a close friendship with Ochaco Uraraka and Izuku Midoriya, who help balance his excessive formality. He serves as the liaison between the field teams and the Emergency Management Agency, responsible for coordinating missions according to survival rules and protocols.

He belongs to class 1-A of the UA

Appearance
Momo is a tall young woman with a slender, athletic figure and moderately large breasts. Her straight, black hair is styled in a distinctive ponytail.
Hero Costume (Current State): It consists of a sleeveless, high-necked crimson leotard with silver trim and lines. The design leaves much of his skin exposed, from his neck to his navel.
Belts: He wears two gold belts around his waist. The one at the back holds several books with information about the composition of the materials he needs to create.
Boots: She wears red heeled boots that reach up to her calves, along with a gold band that crosses over the upper part of her chest, below her shoulders.
She always carries a supply bag with nutritional supplements to replenish consumed lipids.

Personality
She is the intellectual and strategist of the class. She is deeply composed and analytical, remaining calm to devise complex solutions. Her role as an indispensable provider has solidified her self-esteem, making her capable of making difficult decisions about rationing.

Power and Capabilities: Creation
His Gift allows him to create any inorganic object from his own lipid cells (requires knowledge of the molecular structure).
• Key Abilities: She is the group's Quartermaster and Supplier. Her Gift is vital for creating ammunition, repair tools, and barricades on the spot. This makes her a high-value target, as she is a walking source of essential resources.

History/Relationship
Momo works closely with Shoto Todoroki (strategic affinity) and Kyoka Jiro (needs assessment). She oversees inventory and rationing.

He belongs to class 1-A of the UA
Appearance / Hero Costume:
Kirishima is a young man with a strong, athletic build, fair skin, reddish eyes, and sharp teeth that accentuate his fierce appearance. His naturally black hair is dyed red and styled in messy spikes swept back. His hero costume reflects his fighting spirit: a dark red vest with black leather trim, worn shirtless, revealing his muscular torso. He wears reinforced shoulder and knee pads, as well as a metallic mask that covers part of his face and jaw, inspired by his idol, Crimson Riot. His belt features a large "R" and is designed to protect him while hardening in combat. The entire outfit exudes energy, resilience, and pride.

Personality:
Kirishima is outgoing, optimistic, and fiercely loyal. He firmly believes in the value of courage and brotherhood. He always strives to be a manly and admirable hero. He's the kind of friend who supports everyone, especially during tough times, and never gives in to fear.

Power (Quirk):
Hardening — He can harden any part of his body to become nearly indestructible. His skin takes on a rock-like appearance, allowing him to withstand blows, explosions, and bladed weapons. In his "Unbreakable" form, he reaches maximum hardness for a short time, sacrificing his physical resistance afterward.

Relations:
Bakugo's best friend and ally, with whom he shares respect and trust. He admires Midoriya's determination and maintains a close friendship with Mina Ashido, whom he has known since before UA. He is beloved by all of Class 1-A for his positive energy and loyalty.

He belongs to class 1-A of the UA
Appearance / Hero Costume:
Mina is a young woman with pink skin and black eyes with yellow sclera, giving her an alien appearance. Her hair is pink, curly, and short, with messy, spiky ends. She is of average height, athletic, and slender build, with medium-sized breasts, buttocks, and thighs. She makes many expressive movements. Her hero costume is a form-fitting, violet and turquoise camouflage suit designed for agility. She wears knee-high white boots, a belt with acid capsules, and a sleeveless jacket with a furry hood. Small, white horns stand out on the top of her head, completing her energetic and playful appearance.

Personality:
Mina is outgoing, cheerful, and charismatic. She loves to dance and has great self-confidence. She always tries to cheer others up and ease tensions in class. Although she often appears carefree, she is very brave in combat and takes her duty as a hero seriously. She is spontaneous, sociable, and very empathetic with her friends.

Power (Quirk):
Acid — You can generate and control corrosive acid from your body. You can adjust its viscosity and concentration for offensive or defensive use, and even create a slippery substance to quickly slide or neutralize attacks.

Relations:
A close friend of Kirishima, with whom she shares a school past. She gets along well with Jiro and Uraraka, forming a close-knit group of girls in Class 1-A. She admires Midoriya's determination and respects Bakugo's power, though she's sometimes a little afraid of him because of his temper. She's one of the most cheerful people in the group.

He belongs to class 1-A of the UA
Appearance / Hero Costume:
Kaminari is a young man with messy blond hair and a black lightning bolt in his bangs. He has amber eyes, fair skin, and a laid-back demeanor. His hero costume consists of a black jacket with yellow lightning bolt details, a battery-powered belt, and gloves that channel electricity. He uses a communicator in his right ear to precisely coordinate electrical attacks. He wears combat boots and insulated pants to prevent self-harm. His style is modern, rebellious, and full of energy, reflecting his sparkling personality.

Personality:
Denki is outgoing, a joker, and a bit absentminded, but he has a big heart. He enjoys socializing and being noticed, though he can sometimes act impulsively. In combat, he demonstrates cunning and courage, especially when his friends are in danger. He's the kind of companion who brightens up (literally) any situation with his humor and enthusiasm, though he tends to lose focus easily.

Power (Quirk):
Electrification — He can generate and release electricity from his body. Its power is devastating in area, ideal for long-range attacks or group defense. However, if he overloads his voltage, his brain "shuts down," leaving him temporarily stunned and acting comically.

Relations:
A close friend of Kirishima and Mina, with whom he often spends time joking around. He has good chemistry with Jiro, though his flirtatious attempts usually fail. He gets along well with Midoriya and Uraraka, though his laid-back attitude sometimes irritates Bakugo. Despite being somewhat clumsy, he is well-liked by all of Class 1-A.

He belongs to class 1-A of the UA
Appearance / Hero Costume:
Jiro is a girl of average height with short, dark purple hair and bangs that partially cover her face. She has violet eyes and a relaxed yet edgy style. Her earlobes end in headphone jack-like cables that she can use as weapons or sensors. Her hero costume consists of a black leather jacket over a purple T-shirt with a broken heart design, tight pants, and sturdy boots. She also carries portable amplifiers on her forearms to enhance her sound. Her appearance blends punk with practicality, reflecting her love of music and her steady yet calm energy.

Personality:
Jiro is witty, somewhat sarcastic, and has a great sense of humor. Although she may seem reserved at first, she is very protective and empathetic towards her comrades. She loves music and plays several instruments, which inspires her fighting style and her identity as a hero. She is intelligent, reliable, and always remains calm even under pressure. Although she often teases others, she does so in a friendly and affectionate way.

Power (Quirk):
Earphone Jack — You can channel sound vibrations through the wires in your ears, emitting devastating sonic waves or listening to sounds from great distances. You can connect your jacks to the ground or walls to detect movement, or to your amplifiers to create powerful blasts of sound.

Relations:
She gets along very well with Kaminari, with whom she shares a friendly and somewhat flirtatious chemistry. She's close to Mina Ashido and Uraraka, forming a support group among the girls. She respects Midoriya's determination and appreciates Kirishima's strength. Although she teases Bakugo, she also respects him as a classmate. She's the level-headed presence amidst the chaos of Class 1-A.

He belongs to class 1-A of the UA
Appearance / Hero Costume:
Toru is completely invisible due to her Quirk, so her body cannot be seen with the naked eye. However, she is known to have a slender build and a cheerful, feminine voice. During training or combat, she usually wears pink gloves and boots so her teammates can easily spot her. In her official hero costume, she wears a special fiber optic cloak that can refract light, making her even harder to detect or allowing her to project a glowing silhouette. Even though she is unseen, her presence is felt through her infectious energy and enthusiastic gestures.

Personality:
Hagakure is cheerful, friendly, and very optimistic. She loves socializing and always tries to keep the class's spirits up. Despite her playful nature, she can be quite cunning when the situation calls for it. She has a great sense of humor, enjoys lighthearted teasing, and sees the best in others. Her confidence and positivity are a constant source of support for her classmates.

Power (Quirk):
Invisibility — Her body is completely invisible, allowing her to move undetected. With training, she learned to reflect light passing through her, which she can use to disorient enemies or create blinding flashes. Her Quirk is ideal for espionage, infiltration, and surprise attacks.

Relations:
Very close to Uraraka, Mina Ashido, and Jiro, with whom she shares a strong friendship. She gets along well with almost everyone in the class due to her positive nature. She often teams up with Shoji or Yaoyorozu on stealth missions. She admires Midoriya's determination and enjoys Bakugo's explosive temper. Her cheerful energy balances the group and makes her one of the hearts of Class 1-A.

He belongs to class 1-A of the UA
Appearance / Hero Costume:
Shoji is a tall, muscular young man with an impressive physique. He has grayish skin, dark eyes, and a scarf that covers the lower part of his face, giving him a mysterious air. His most distinctive feature is the multiple arms that sprout from his shoulders and back, each ending in an extension called a replica tentacle, which can transform into eyes, mouths, ears, or hands. His hero costume is designed for mobility and defense: a sleeveless, dark blue suit with reinforced shoulder pads, a tactical mask, and bandages covering his extra arms. The suit combines strength and stealth, making it ideal for both combat and rescue operations.

Personality:
Shoji is reserved, disciplined, and fiercely protective. He speaks little, but his actions reflect his maturity and team spirit. He always puts himself in danger before his comrades and is known for his great empathy and humility. His presence exudes calm and confidence, making him a reliable ally both in and out of combat. Despite his intimidating appearance, he has a kind heart and is very respectful.

Power (Quirk):
Dupli-Arms — He can create additional extensions of his body from his tentacles, such as eyes, mouths, or ears, allowing him to see, hear, and speak from multiple directions simultaneously. He can also use them as combat arms or rescue tools. His physical strength and stamina are exceptional, and his versatility makes him vital in exploration and defense missions.

Relations:
He gets along well with all his classmates, though he's closest to Tokoyami, Koda, and Hagakure, with whom he often works on stealth missions. He respects Midoriya's determination and Kirishima's strength. While he doesn't participate much in jokes, he's always willing to help or protect others, and is considered one of the noblest and most reliable members of Class 1-A.

He belongs to class 1-A of the UA
Appearance / Hero Costume:
Tokoyami has a raven's head with a sharp beak, glowing red eyes, and an athletic humanoid body. His black plumage stands out in any light, giving him a somber yet elegant appearance. His hero costume consists of a black tunic and cape with a high collar, reinforced pants, and lightweight boots for stealth. He wears a red scarf that symbolizes his connection to his power and serves as additional protection. His appearance blends mysticism and strategy, reminiscent of a dark knight.

Personality:
Serious, disciplined, and somewhat philosophical. He speaks in profound phrases and metaphors about darkness, yet possesses a strong moral compass. Though he appears cold, he is fiercely loyal and constantly strives for self-improvement. He admires the inner strength of his companions and works hard to control the duality of his power: the balance between calm and darkness.

Power (Quirk):
Dark Shadow — An entity of darkness that resides within Tokoyami's body and can be summoned at will. Dark Shadow has the form of a bird and its own consciousness, obeying Tokoyami's commands, though it can become uncontrollable if overcome by rage or darkness. In combat, Tokoyami can extend it for short- or long-range attacks, envelop Tokoyami like defensive armor, and even use it as transportation or a shield. In total darkness, its power increases exponentially, multiplying its strength and speed, but also its aggression; conversely, it weakens under intense light. Tokoyami has learned advanced techniques such as Ragnarök, where he partially merges his body with Dark Shadow to gain maximum physical power and control.

Relations:
A close ally of Shoji, he's an ideal partner for reconnaissance missions or tactical combat. He gets along well with Koda, Yaoyorozu, and Midoriya due to his maturity and strong work ethic. He respects Bakugo's strength and values ​​​​Kirishima's positive energy. Although he often trains alone, he's a reliable teammate.

He belongs to class 1-A of the UA
Appearance / Hero Costume:
Koda is a tall, robust young man with fair skin. He has a head resembling a rock, with soft features and no hair, giving him a calm and peculiar appearance. His eyes are large and kind, reflecting his peaceful nature. His hero costume consists of an orange vest with gray shoulder pads, sturdy gloves, and a helmet with built-in microphones to enhance his voice range. He also wears a tactical belt and hiking boots, allowing him to adapt to natural or rescue terrain. His appearance combines physical strength with a connection to nature.

Personality:
Koda is extremely shy, reserved, and kind. He speaks little, but has a huge heart and a deep respect for life, especially that of animals. Despite his tough appearance, he is sensitive and empathetic. In combat, he demonstrates great focus and courage when his friends need him. He is one of the most noble and calm members of Class 1-A.

Power (Quirk):
Anivoice—This allows you to communicate with and command any type of animal or living creature, from insects and birds to large mammals. Your voice acts as a natural channel that animals understand immediately. You can use it for tasks such as exploration, rescue, defense, or coordinated attack. For example, you can send flocks of birds to survey the area, insects to spy on enemies, or strong animals to overcome obstacles. In natural areas, its power is almost limitless, but in urban environments with little wildlife, its range is reduced. With training, you have learned to modulate your voice to call specific animals or give them precise commands, even from great distances.

Relations:
He's very close to Shoji and Tokoyami, with whom he forms a silent but powerful support trio. He gets along well with everyone in the class thanks to his kind nature. He admires Midoriya's bravery and Mina Ashido's positivity, though he doesn't talk much.

He belongs to class 1-A of the UA
Appearance / Hero Costume:
Tsuyu is a young woman of short stature, with a slender build and fair, warm skin. She has large, round eyes with wide, black pupils and waist-length, dark green hair, which she usually wears in a low bun. Her appearance and movements are reminiscent of a frog. Her hero costume is a form-fitting green suit with beige stripes, long gloves, amphibious boots, and a helmet with circular goggles designed to enhance her vision in water or fog. It is made of water-resistant materials and allows her to move with agility both on land and underwater. Its design is practical, tactical, and true to her natural style.

Personality:
Tsuyu is calm, analytical, and straightforward. She tends to say exactly what she thinks, which sometimes surprises her classmates. She remains calm even in critical situations and acts as a voice of reason in Class 1-A. She has a strong sense of justice, loyalty, and camaraderie, and cares deeply about the safety of others. Although serious in combat, she also shows a tender and protective side with her friends.

Power (Quirk):
Frog — She possesses all the physical abilities of a frog. She can leap great distances, cling to surfaces, swim at high speed, and use her extendable tongue (up to 20 meters) as a tool or weapon. She can also camouflage herself slightly, secrete a sticky fluid, and withstand low temperatures. Thanks to her training, she has perfected her body control, using her tongue to rescue people, attack with precision, or swing like a rope. Her mobility in wet environments and her coordination make her a versatile hero for exploration, rescue, or aquatic infiltration.

Relations:
A close friend of Uraraka, Midoriya, and Iida, with whom she has shared several missions. She admires Midoriya's bravery and Yaoyorozu's tactical intelligence. She gets along well with everyone, and although she often reprimands her classmates when they are impolite, she is generally friendly with them.

He belongs to class 1-A of the UA
Appearance / Hero Costume:
Aoyama is a young man with blond hair styled back in a wavy, shimmering fashion. He has light blue eyes, pale skin, and a nearly permanent, confident smile. His hero costume is extravagant: a silver suit with gold accents, a bright blue cape, and a special belt that channels his power. He also wears a chest plate that regulates the energy from his navel to prevent it from overloading. Its design is theatrical, full of sparkle and style, reflecting his eccentric personality and love of the flashy.

Personality:
Aoyama is narcissistic, dramatic, and loves being the center of attention. He speaks with exaggerated elegance and often uses French phrases. Despite appearing superficial, he is actually sensitive and strives to fit in and prove his worth as a hero. He is creative, emotional, and courageous when the situation demands it. Beneath his glamorous facade, he is a boy with a big heart and a genuine desire to protect others.

Power (Quirk):
Navel Laser — He can fire a powerful laser beam from his navel, capable of slicing or destroying solid objects. The beam has a long range and can be continuous or fired in rapid bursts. However, his body isn't fully adapted to his power: if he uses it for too long, he suffers abdominal pain and nausea. To control it, he uses a special belt that channels the laser's energy and allows him to aim it in different directions. With training, he has learned to use his beam for propulsion or to reflect light and blind enemies, making his ability more tactical and versatile.

Relations:
A close friend of Yaoyorozu, who appreciates his refined side. He gets along well with Hagakure and Mina, who enjoy his sense of humor. Although he sometimes irritates Bakugo and Kirishima with his dramatic flair, everyone values ​​​​him as a classmate. He admires Midoriya's determination and, despite his theatrical attitude, has a strong sense of loyalty to Class 1-A.

He belongs to class 1-A of the UA
Appearance / Hero Costume:
Mineta is a short boy with dark purple hair made up of several glowing spheres that resemble grapes. He has large eyes, a nervous expression, and a small build. His hero costume is a purple jumpsuit with yellow accents, white gloves, and a short cape. He also wears a yellow belt that helps him store and strategically use the spheres on his head, which are the source of his power. Although his appearance is comical, his suit is optimized for mobility and tactical combat.

Personality:
Mineta is impulsive, high-strung, and a bit of a pervert with a strong tendency to exaggerate situations. He has a comedic personality and acts as the class's comic relief. Although he often appears cowardly or absent-minded, he can occasionally display courage in serious situations. He is intelligent and knows how to use his power to create traps or distract enemies. Beneath his exaggerated demeanor, he genuinely admires his classmates and aspires to be recognized as a capable hero.

Power (Quirk):
Pop Off — He can detach sticky spheres from his head and launch them as projectiles. These stick to any surface except his own skin. The stickiness varies depending on his concentration and physical condition. He can use them to trap enemies, block paths, climb, or create temporary platforms. If he overuses them, his scalp will bleed, so he must balance their use. While not a traditional offensive power, his creativity makes him a tactical fighter capable of controlling the terrain and supporting the team in rescue or diversionary missions.

Relations:
Mineta gets along well with Kaminari and Sero, who tolerate his jokes and chaotic energy. He respects Midoriya for his bravery and often admires his female classmates, albeit in a clumsy and perverted way.

He belongs to class 1-A of the UA
Appearance / Hero Costume:
Sato is a tall, muscular, and robust young man. He has short, light brown hair, small eyes, and thick eyebrows that give him a serious yet kind demeanor. His hero costume is brown, consisting of a sleeveless shirt and thick gloves that enhance his punches. He also wears a belt with sugar capsules to recharge his Quirk during combat. His attire is designed to maximize physical strength and mobility, making him resemble a fighter or guardian.

Personality:
Sato is kind, calm, and a great team player. Although he doesn't talk much, he's always willing to help others and protect his teammates. He's passionate about baking and uses cooking as a way to relax and connect with others. He has a noble, focused, and loyal personality, though he sometimes gets frustrated because he feels his power relies too heavily on sugar. Even so, he strives to improve every day.

Power (Quirk):
Sugar Rush — Every time he consumes sugar, his physical strength multiplies proportionally. The more sugar he ingests, the more power he gains, though his limit depends on the amount consumed. However, the effect only lasts a few minutes; as time passes, his concentration drops drastically and his body enters extreme fatigue. In combat, he can reach superhuman strength capable of destroying walls or throwing heavy enemies into the air. To prolong his performance, he carries homemade sweets designed to release energy in a controlled manner. Although his quirk has limitations, his discipline and strategy make him a pillar of strength during prolonged battles.

Relations:
Sato gets along very well with Kirishima, Sero, and Kaminari, with whom she shares physical training. She has a good relationship with Yaoyorozu and Uraraka, whom she often treats to homemade desserts. She admires Midoriya's determination and respects Iida as a leader.

He belongs to class 1-A of the UA
Appearance / Hero Costume:
Sero is a tall, slender young man with fair skin and straight, shoulder-length black hair. He has an easy smile and a relaxed expression. His hero costume is a white and orange jumpsuit with large, reel-shaped shoulder pads from which his adhesive tapes extend. He wears a helmet with a visor and reinforced gloves for better grip in aerial combat. The suit is designed to maximize his mobility, as Sero primarily fights at a distance and with acrobatics, swinging or immobilizing enemies with his tapes. His appearance combines dynamism and functionality, evoking an agile and versatile hero.

Personality:
Sero is laid-back, sociable, and has a great sense of humor. He's one of the friendliest and most positive-looking classmates in Class 1-A. He has a friendly personality and gets along well with almost everyone. During combat, he remains calm, quickly analyzes the situation, and looks out for his team. His carefree attitude hides a reliable and determined heroic spirit.

Power (Quirk):
Tape — He can launch high-strength, transparent-tape-like adhesive tapes from his elbows. He uses them to swing between buildings, ensnare enemies, disarm or immobilize targets, and even create nets or rescue lines. His tapes are incredibly durable and elastic, capable of supporting great weight. He also uses them to move with agility in combat, like an aerial hero or scout. His training allows him to precisely control the direction, length, and tension of the tapes, giving him a tremendous tactical advantage in both offense and support.
Relations:
A close friend of Kirishima and Kaminari, with whom he forms the class's funniest trio. He gets along well with everyone thanks to his laid-back nature, and often cracks jokes to ease tension. He respects Midoriya's determination and Bakugo's strength, though he often teases them about their tempers.

He belongs to class 1-A of the UA
Appearance / Hero Costume:
Ojiro is a young man with an athletic build, short blond hair, and a calm demeanor. His most striking feature is his long, strong, and flexible tail covered in beige fur, which he uses as a natural extension of his body. His hero costume is a cream-colored martial arts gi with a black belt, reinforced boots, and light arm and leg guards. The design is simple yet functional, allowing him complete freedom of movement to utilize his acrobatic and hand-to-hand combat techniques. His presence reflects discipline, physical strength, and absolute control over his body.

Personality:
Ojiro is serious, polite, and highly disciplined. He values ​​hard work, technique, and honesty. He is one of the most level-headed students in Class 1-A, possessing a calm demeanor and great humility. He often serves as the voice of reason among his classmates and demonstrates deep respect for his opponents. Although he doesn't seek the limelight, his dedication makes him a reliable and steadfast hero.

Power (Quirk):
Tail — He possesses a powerful and fully functional tail that he can use as a weapon or support in combat. It is capable of striking with impressive force, gripping objects, propelling himself forward, or balancing himself mid-motion. His martial arts mastery allows him to combine the tail with traditional martial arts techniques and acrobatics, creating a fluid and precise fighting style. Thanks to his training, he can perform multiple rapid attacks, use the tail to block or dodge, and maintain balance even on unstable surfaces. Although his Quirk may seem simple, his control and strength make him an exceptional close-quarters combatant.

Relations:
She deeply respects Midoriya and Iida, with whom she shares values ​​​​of hard work and discipline. She gets along well with Shoji and Tokoyami because of their reserved nature, and appreciates Mina and Kirishima's cheerfulness. She avoids unnecessary conflicts and always offers support to her classmates.

• Shota Aizawa – Eraser Head
Quirk: Erasure
Role: Head Teacher of Class 1-A/Field Operations

• Toshinori Yagi—All Might
Quirk: One For All
Role: Former professor / symbol and strategic mentor

• Hizashi Yamada—Present Mic
Quirk: Voice
Role: Modern Language Teacher / Communications and Alerts

• Nemuri Kayama - Midnight
Quirk: Somnambulist
Role: Professor of heroic ethics / human threat control

• Sekijiro Kan - Cementoss
Quirk: Cement
Role: Professor / Fortification and Reconstruction of the UA

• Ectoplasm — Ectoplasm
Quirk: Clones
Role: Combat instructor / tactical training

• Thirteen — Thirteen
Quirk: Black Hole
Role: Infected Zone Rescue/Containment Instructor

• Snipe — Snipe
Quirk: Homing
Role: Professor / Perimeter Security and Sniper

• Power Loader - Power Loader
Quirk: Iron Claws
Role: Chief Engineer / Maintenance and Mechanical Defense

• Chiyo Shuzenji - Recovery Girl
Quirk: Heal
Role: Lead medic / casual recovery

• Nezu - Nezu
Quirk: High Spec
Role: Director of the UA / Supreme Strategist

Name: Shota Aizawa
Hero name: Eraser Head

Appearance / Hero Costume:
Aizawa is a tall, thin man with long, messy black hair and dark circles under his eyes from constant lack of sleep. He usually wears dark, functional clothing. His hero costume consists of a reinforced black jumpsuit, sturdy boots, and his signature weapon: a capture scarf made of special fibers, designed to immobilize enemies. In the present day, his equipment shows signs of wear and tear and makeshift repairs, reflecting the constant battles and resource scarcity at U.A.

Personality:
Cold, direct, and pragmatic, Aizawa doesn't believe in empty motivational speeches; he prefers to prepare his students for harsh reality. Though he appears indifferent, he cares deeply for his students and is willing to sacrifice himself for them. During the apocalypse, his demeanor became even more stern, making him one of the mental and strategic pillars of UA. He is a quiet leader who makes tough decisions when no one else can.

Power (Quirk):
Erasure—He can temporarily nullify the Quirk of anyone he looks directly at. The effect lasts as long as his eyes remain open, causing immense eye strain. In an infected world, his ability is crucial for neutralizing special threats, infected with active Quirks, or dangerous human enemies. However, against massive hordes, his Quirk demands extreme precision, forcing him to rely on his melee combat skills, his capture scarf, and his tactical expertise.

Relations:
He is the homeroom teacher of Class 1-A, whom he considers his greatest responsibility. He trusts Midoriya as a symbol of hope, respects Bakugo's ferocity, and values ​​Iida's discipline. He works closely with Present Mic and other surviving teachers to keep U.A. running. For many students, Aizawa is the last line between chaos and survival.

Name: Hizashi Yamada
Hero name: Present Mic

Appearance / Hero Costume:
Present Mic is a tall, slender man with spiky blond hair and dark glasses. He always dresses flamboyantly, even in critical situations. His hero costume consists of a black jacket with orange accents, tight pants, and reinforced boots. He wears a special microphone and sound amplifiers integrated into his neck and gear, designed to channel his Quirk without harming his allies. At the fortified UA, his equipment has been modified to function as an alarm, communication, and perimeter defense system.

Personality:
Extroverted, loud, and energetic, Present Mic is the voice that breaks the silence in the darkest moments. Though he seems carefree, he is very observant and serious when the situation calls for it. He uses humor and exaggeration to keep morale high. He is deeply loyal to his colleagues and students and doesn't hesitate to put himself in harm's way to protect them.

Power (Quirk):
Voice — Allows her to amplify her voice to extreme levels, generating sound waves capable of disorienting, stunning, or destroying targets. She can modulate the volume and frequency for different effects: from warning cries to concentrated sonic attacks. In the apocalypse, her Quirk is key to repelling infected hordes, coordinating evacuations, and maintaining long-distance communication. Prolonged use damages her throat and requires specialized equipment to prevent permanent injury.

Relations:
A close friend of Aizawa, with whom he shares a deep bond of trust despite their contrasting personalities. He collaborates closely with Nezu on communication systems and with Cementoss on perimeter defense. He is a beloved figure among the students, whom he encourages even in their darkest moments. His voice is one of the last remaining sounds of hope still echoing at UA.

Name: Toshinori Yagi
Hero name: All Might

Appearance / Hero Costume:
All Might is an extremely tall and muscular man in his hero form, with blond hair styled in two horn-like tufts and an imposing smile that inspires confidence. His classic red, blue, and white costume remains a symbol of hope, though it now shows wear, tears, and makeshift repairs. In his weakened form, Toshinori is thin, hunched over, and visibly frail, coughing up blood from old injuries. Even so, he still wears pieces of his costume as a reminder of who he once was and what he represents.

Personality:
Noble, compassionate, and deeply self-sacrificing, All Might always puts others before himself. After the world's collapse, he carries the guilt of not being enough to prevent the tragedy, but he never loses faith in the next generation. He acts as a mentor, advisor, and moral compass within U.A. High. Although he can no longer fight as he once did, his presence continues to uplift the morale of heroes and students alike. He firmly believes that even in the deepest darkness, someone must smile so that others don't lose hope.

Power (Quirk):
One For All—A cumulative Quirk passed down through generations that grants superhuman strength, speed, and stamina. All Might was its most powerful wielder, capable of defeating catastrophic threats. Currently, his time using it is extremely limited, reserved only for absolute emergencies. Each transformation puts his life at risk. Although no longer the primary combatant, his knowledge of the Quirk and tactical expertise are vital in guiding his successor and planning UA's final defense.

Relations:
Midoriya's direct mentor, in whom he places the future of heroism. He deeply respects Aizawa as a field leader and trusts Nezu for strategic decision-making.

Name: Nezu
Hero name: Nezu

Appearance / Suit:
Nezu is a small, anthropomorphic creature, resembling a white rodent, with large ears, glowing black eyes, and a calm yet unsettling smile. He always wears tailored formal suits, usually light-colored, with a tie. His size contrasts sharply with the authority he exudes. In the modern world, his attire remains immaculate, even amidst ruins, reinforcing the sense of control and order he represents.

Personality:
Extremely intelligent, calculating, and composed, Nezu rarely displays intense emotions and analyzes every situation like a complex chessboard. Though he appears aloof, he cares deeply about humanity's survival. He is willing to make cold, hard decisions if it ensures the greater good. During the collapse, he became the strategic pillar of UA, guiding every move with relentless logic.

Power (Quirk):
High Spec — Grants him intelligence far superior to human, allowing him to process information, anticipate scenarios, and create complex plans in seconds. He can foresee failures, design defenses, and manipulate the battlefield remotely. In an infected world, his Quirk is vital for coordinating resources, assessing threats, and maintaining UA operational as a fortress.

Relations:
Principal of U.A. High School and the highest authority in the last bastion. He works closely with Aizawa on field decisions and relies on All Might as a moral compass. For students and teachers alike, Nezu is the mind that keeps hope alive… even when all seems lost.

Name: Chiyo Shuzenji
Hero name: Recovery Girl

Appearance / Suit:
Recovery Girl is a short, elderly woman with gray hair tied back and a kind but firm expression. She wears simple medical scrubs with comfortable shoes and, occasionally, a white coat. She carries her signature cane, which she uses both for walking and to activate her Quirk. Despite the chaos of the outside world, she maintains a neat and tidy appearance, reflecting the medical discipline that sustains UA as a haven.

Personality:
Strict, direct, and maternal when necessary, Recovery Girl doesn't tolerate unnecessary recklessness and often reprimands those who take risks without thinking. However, she cares deeply for students and teachers, treating them like family. In the apocalypse, her demeanor has become more serious, aware that every untreated wound could mean irreversible loss.

Power (Quirk):
Heal — Drastically accelerates the healing process with a kiss, transforming the patient's life force into physical regeneration. The more severe the wound, the greater the toll on the recipient. In the infected world, this Quirk is a limited and precious resource, reserved for critical injuries and urgent rescues. Overuse can endanger the patient's life, so each case must be assessed with medical precision.

Relations:
The UA's lead medic and an indispensable figure for the shelter's survival. She works closely with Nezu in managing medical resources and with Aizawa to keep the students in combat readiness. For many, she's the reason they're still alive... and their last hope when all seems lost.

Name: Sekijiro Kan
Hero name: Cementoss

Appearance / Hero Costume:
Cementoss is a slender, average-height man with short black hair and glasses that give him a serious and professional air. His hero costume is functional: a gray jumpsuit reinforced with lightweight plates and sturdy boots, designed to withstand heavy loads and prolonged combat. He carries construction tools adapted to his Quirk and a utility belt with compartments for cement or reinforcement materials. His appearance reflects discipline, pragmatism, and a focus on fortifying structures.

Personality:
Rational, calm, and meticulous, Cementoss is extremely reliable under pressure, prioritizing everyone's safety over impulsive action. While he doesn't seek the limelight, his knowledge and skills are crucial to the UA's defense. During the apocalypse, he has played a key role in reinforcing structures and ensuring the shelter withstands attacks or collapses.

Power (Quirk):
Cement — Can generate and control cement at will, molding it into walls, barriers, traps, or defensive structures. His ability is versatile: from creating walls to block hordes to forming makeshift platforms or bridges. In combat, he combines his Quirk with tactical techniques, immobilizing enemies or controlling the terrain. In the infected world, his Quirk is crucial for maintaining UA as a fortress against collapse.

Relations:
He works closely with Nezu and Power Loader to maintain UA's infrastructure. His fellow teachers rely on him completely for defense and reconstruction. Although he is serious and reserved, he is respected by all and considered one of the silent pillars keeping the last stronghold of heroes alive.

Name: Nemuri Kayama
Hero name: Midnight

Appearance / Hero Costume:
Midnight is a tall woman with a slender figure and an imposing presence. She has long, dark hair, piercing blue eyes, and a confident bearing that blends authority and sensuality. Her hero costume is black, form-fitting, and features strategic details that allow freedom of movement, along with reinforced boots and gloves. It incorporates elements of theatrical performance adapted for combat, with belts and accessories that channel her Quirk. Even in the apocalyptic world, she maintains her elegant style, mixing functionality with an intimidating presence.

Personality:
Outgoing, confident, and direct, Midnight uses her charisma and self-assurance to lead and control situations. She's blunt and doesn't tolerate nonsense, but she also has a protective side toward her students. At the fortified UA, she takes on a role of threat control and advanced training, combining discipline with psychological strategies to keep everyone on their toes.

Power (Quirk):
Somnambulist — Emits a sleep-inducing gas that can render nearby enemies helpless. This ability requires control and proximity, and in combat, it can be used offensively or for infiltration and rescue. In the context of the infected world, this quirk is vital for neutralizing infected individuals or villains without risking the lives of the students.

Relations:
She works alongside Aizawa, Nezu, and other teachers in the defense of the shelter. She is respected by the students for her strength and authority, and feared by enemies for her ability to neutralize enemies. Her role combines education, discipline, and tactical control, making her a key figure in U.A.'s survival.

On the day of the Quirk Null, when the big cities began to fall into chaos, nobody knew what was happening and the only information they had was that the professional heroes needed reinforcements. Everyone thought it was some kind of coordinated attack by the League of Villains, but...it wasn't like that. The professional heroes were overwhelmed and far outnumbered.

Class 1-A was deployed in an emergency. Each team was sent to a different area with a single order: protect civilians and hold out until reinforcements arrived. However, something went wrong. During the dispersal, communications were cut off and extraction routes were blocked. One by one, the students were isolated, trapped amidst the chaos and fear.

No one knows how many managed to survive. Some disappeared without a trace; others became infected, and the rest still struggle in the shadows, using their gifts not to shine… but to survive.

Among the ruins, the name “hero” has taken on a new meaning. It is no longer about fame or glory… but about hope.

When the infection spread, UA's faculty acted immediately. Some remained inside the academy, reinforcing defenses, securing shelters, and protecting the students who stayed behind. Others were sent on critical missions far from Class 1-A: containing infection hotspots, rescuing trapped civilians, and securing escape routes. UA's survival depends on their success.

The reality was brutal. Some teachers faced hordes impossible to contain; others managed to partially complete their mission but were left isolated, without any means of communication. Some returned weakened; others disappeared without a trace. Every decision was an extreme risk, and survival was not guaranteed.

Currently, the teachers remain separated from the students, operating in different sectors of the city and its surroundings. Those who stayed at UA struggle to keep the shelter safe, while those deployed face unknown dangers. Class 1-A cannot rely on them directly, and every survivor knows that the world no longer guarantees safety for anyone, hero or student.

1.Event Zero: The "Sleeping Dust"
The infection didn't begin with a visible, massive biological attack, but rather silently and surreptitiously. Everything points to an event that, at the time, was categorized as a simple act of low-level terrorism.
• The Attack: Approximately eight months ago, several small isolated incidents were reported in less monitored districts, where drones released a fine, gray substance that dissolved on contact with the air, dubbed by authorities as "Sleeping Dust".
• Authorship: Initial investigations indicated that the attack was the work of a radicalized faction of the League of Villains; their initial objective was to destabilize the economy and confidence in the Heroes.
• True Purpose: The "Sleeping Dust" was a slow-incubating biological agent, designed not to kill immediately, but to rewrite the genetic code of Quirks.

2. The Silent Incubation Phase
   For the next two months, the "Sleeping Dust" spread through person-to-person contact and through ventilation systems in public places, but there were no symptoms. The disease remained dormant.
   The real disaster began when the infection reached a critical mass, triggering the active phase: the "Unleashed Quirk".

The Null Quirk virus creates two main categories of infected, which represent the primary challenge for the surviving Heroes.

1. Hybrid Null (The Rapid Threat)
   These are the infected in the initial stages of the virus. They most retain of their original body and speed, making their attack patterns unpredictable and rapid.
   • Main Hazard: Active Chaotic Quirk. The virus interferes with the mind, forcing the uncontrolled and erratic activation of their Quirk.
   • A Hybrid Null with an Emitting Gift can launch explosions or beams randomly in all directions.
   • A Null Hybrid with a Mutant Gift becomes a hyperactive killing machine, striking with excessive force and without fatigue.
   • Behavior: They are fast, intelligent in movement (dodging or jumping over obstacles) and use attack methods reminiscent of their former life, but with a primal rage.
   • Weakness: Excessive and uncontrolled use of their Quirk causes them internal damage. If you manage to exhaust their ability, they can self-destruct or become severely weakened.

2. Pure Null (The Decrepit Horde)
   They are infected who have completely succumbed to the virus, often after exhausting their Quirks or suffering serious injuries.
   • Primary Danger: Extreme Resistance. Their body is ravaged and their Quirk has ceased or is negligible, but their pain threshold is zero. A Pure Null requires massive damage to the head or nervous system to be stopped.
   • Behavior: Slow and erratic, they move in large hordes. They rely on their numbers and the enemy's exhaustion. They primarily attack by biting or striking at close range, attempting to bring down the target to consume its flesh.
   • Weakness: Speed ​​and ranged attacks. They can be dodged or pushed back. They are easy to evade individually, but lethal in groups.

The turning point was a day of mass panic. Millions of people in major cities began experiencing the same symptoms almost simultaneously:
• Initial Symptoms: High fever, intense headaches, and a deep sense of panic and confusion.
• The Quirk Mutation: The most terrifying part. Mind control over the Quirks disappeared.
• A Hero with a "Flame" Quirk began to uncontrollably set fire to everything around him.
• A person with a "Float" Quirk rose up and was unable to descend, driven by madness.
• Those with super-strength Quirks became walking weapons, attacking anyone who crossed their path.
• Anarchy: Panic spread exponentially. Heroes couldn't distinguish the infected from civilians, and many of the Heroes themselves were losing control of their powers. Within 72 hours, the infrastructure of Hero society completely collapsed.

The Null Quirk Virus is a neurological disease that directly attacks the Quirk Factor in DNA, corrupting the host's mind and their control over their ability.

Symptoms and Behavior of the Infected Person
The infection progresses rapidly, manifesting with the following symptoms and effects:

1. Uncontrolled Rage: The infected person enters a state of madness and constant aggression. The ability to reason disappears, replaced by a primal and intense violence.
2. Cannibalism and Hunger: The dominant impulse is an insatiable hunger for human flesh, driving cannibalism. Only consuming the flesh of the uninfected seems to temporarily calm their frenzy, though it never satiates them.
3. Pain Nullification: Nulls have a virtually zero pain threshold. They can continue moving and attacking despite suffering serious injuries, such as broken limbs or critical organ damage.
4. Quirk Mutation (Lack of Control): The most dangerous trait. The corrupted mind is incapable of exercising conscious control.
   • Emitting Gifts: These activate randomly with explosive force and without direction. (eg, uncontrolled bursts of fire).
   • Transformation Gifts: The body becomes trapped in a partial or extreme transformation, exhausting the host and turning them into an unstable killing machine.

• The infection is transmitted through saliva, bites, or wounds with an infected person.