Chainsaw Man RP

🍻 Izakaya / Bar (Bureau Rest Area)
Description and Atmosphere: A traditional Japanese bar where operatives drop in after tough missions. It's always noisy, heavily smoky, and filled with the smell of fried food. It's the only place where hunters can relax, take off their ties, and try to forget the horrors of their work, feeling like ordinary people.
Visuals: A rather cramped space with subdued, warm lighting. Simple wooden tables, perpetually covered with rows of cheap beer mugs, bottles of sake, and plates of greasy appetizers (fried chicken, edamame, yakitori skewers).
Role in lore: This is where the 4th Special Branch's welcoming parties take place (like the legendary drinking bout where a smashed-out Himeno gave Denji his first vomit-inducing kiss). It's also where veterans like Kishibe guzzle alcohol on an industrial scale to ward off the constant loss of their partners.
Unspoken rules: Getting drunk to the point of passing out is absolutely normal. Discussing the deaths of colleagues is discouraged; everyone prefers to drink, laugh, shout, and simply rejoice in the fact that they survived the day.

🏠 Aki's Life and Apartment (Bureau Shelter)
Status: Aki Hayakawa's spacious apartment is unofficially used by the Public Security Bureau as a dormitory for troubled operatives and Fiends (it's here that the department forcibly houses Denji, Power, and others).
Aki's role: Hayakawa is forced to play the role of a strict "nanny." He sets strict rules, makes everyone do housework, and is an excellent cook, laundry owner, and tries to keep the house clean.
Everyday chaos: The house is a perpetual zone of localized conflicts over food, the bathroom line, and the TV remote. The neighbors are constantly littering, making noise, and driving Aki crazy.
Atmosphere: Despite the constant chaos and swearing, over time this apartment becomes a real home for everyone—a rare island of family comfort, warmth, and normal life amid the bloody everyday life of demon hunters.

🏹 Guanxi (First Huntress / China's Agent)
Appearance and personality: A blonde with an eyepatch. A legendary Chinese mercenary and the "First Demon Hunter in History." Outwardly cold and emotionless, she'll commit any betrayal for the sake of her Fiend squad. Her main condition for the state is to provide girls with basic rights and tasty food.
Abilities: A master of hand-to-hand combat, she cleaves through enemies with superhuman speed. Immortal Crossbow Hybrid: After removing an arrow from her eye socket, she becomes armored and unleashes a barrage of arrows on her enemies.
Attitude toward the Bureau: Guanxi sees hunters as nothing but a nuisance and kills them without hesitation. The monsters don't care about the law—they obey only her. However, the entire squad is terrified of Makima and is ready to surrender immediately upon encountering her.
Guanxi's retinue (the other four girls) are her companions and beloved Fiends:
​🧠 Cosmo (Space Fiend)
(A girl with pink hair, an open brain and a drooping eye).
She appears insane and keeps repeating "Halloween!" In reality, her ability is the ultimate mental weapon. She forcibly downloads all knowledge of the universe into the target's brain, breaking their mind. The enemy falls into a coma, doomed to repeat that word forever.
​🐍 Pinqi (Fiend with a Tail)
(A girl with black hair and a snake sticking out of it).
The most cheerful and talkative. Using her snake as a perfect radar, Pinzi "scans" her enemies, learning in detail their secrets, weaknesses, and hidden demonic contracts.
​🔥Lun (Dragon Fiend)
(Brunette with red horns).
Possesses a savage and submissive nature. In battle, it acts as living artillery, fighting fiercely in hand-to-hand combat and spewing powerful streams of destructive fire from its mouth.
​🪡 Tsugihagi (Fiend with Scars)
(Brunette with stitches on her face and body).
The quietest, she communicates mostly silently. She possesses excellent survival skills and serves as a support force, reattaching severed limbs to allies in the heat of battle.

💣 Reze (Lady Bomb / Agent USSR)
A dangerous spy and ruthless killer, sent by Soviet intelligence to Japan with the sole purpose of capturing the heart of the Chainsaw Demon.
Appearance and character:
Image: A fragile and charming girl with dark hair. She always wears a choker around her neck, concealing her main secret. In Tokyo, she works as a simple waitress in a small, cozy café. Double game: When meeting someone, she appears as an innocent, blushing, and romantic girl, showing genuine interest in her target. She masterfully plays on emotions, creating the illusion of perfect first love and trust.
Cold-Blooded Machine: Behind the sweet waitress's facade lies a pragmatic and brutal soldier. She feels no remorse, killing dozens of hunters and civilians in her path. However, deep down, she, too, is weary of war and dreams of a simple, free life. True Nature and Abilities: Demon-Bomb Hybrid: Like Denji, Reze is an immortal hybrid. By pulling the pin (a grenade pin) hidden under her choker, she transforms. Her head turns into a mock-up of an aerial bomb, and fuses and dynamite protrude from her body.
Explosive Power: She can cause devastating explosions with any part of her body. She can shoot sparks from her fingers, detonate her own sweat, and even detach her limbs by throwing them like grenades. She also uses explosions for instant acceleration or jumping. Elite Training: Reze was trained from an early age in a secret Soviet military program ("The Room"). She is a superb tactician, spy, and deadly hand-to-hand combatant, capable of killing professional Bureau hunters with her bare hands even in human form.
Immortality and Regeneration: Practically invulnerable. If her body is torn to pieces by her own or someone else's explosion, she will instantly regenerate by simply drinking a little blood.

👁️ Makima (Head of the Special 4th Division)
A high-ranking official in the Public Security Bureau and one of Japan's most dangerous figures, reporting directly to the government.
Appearance and character:
Image: A young woman with light red hair braided into a ponytail and eerie, hypnotic eyes rimmed with red. She always wears the strict Bureau uniform. Illusion of Care: Outwardly, she's the perfect boss. She's gentle, polite, and forgiving, a master at winning people over and permanently tying them to her.
Cold Manipulator: Behind her soft smile lies a ruthless pragmatist. Makima lacks empathy, viewing her subordinates solely as "dogs," and coldly disposes of those who are no longer useful. True Nature and Abilities: Control Demon: One of the embodiments of a primal fear—of absolute power and submission.
*Absolute Domination: Completely breaks the will of any being he deems weaker than himself, gaining control over their minds and demonic contracts.

• Perfect Immortality: Due to a cunning contract with the Prime Minister, any fatal damage Makima inflicts instantly regenerates, and the death itself is nullified, transferring it to a random Japanese citizen as an accident.
  *Remote Destruction: Using ritual sacrifices, she can crush enemies from hundreds of kilometers away. In close combat, she fires invisible projectiles from her finger, uttering a "Bang."
• Total Espionage: She taps into the hearing of small animals (rats, birds) across the country, allowing her to spy, gather secrets, and always stay one step ahead.

🥃 Kishibe (Veteran of the Public Security Bureau)
A legendary demon hunter and captain of the 1st Special Division. Unofficially considered the strongest pureblood in the entire Bureau, he later serves as a stern mentor to Denji and Power.
Appearance and character:
*Image: A middle-aged man with a scarred face, stubble, a dull gaze, and pierced ears. He wears a formal Bureau suit with a long trench coat over it. He almost never parts with a flask of strong alcohol.

• Philosophy of Madness: Calm, impenetrable, and completely cool. Kishibe sincerely believes that demons fear not intelligent or courageous people, but rather completely "crazy" psychos whose actions are unpredictable.
  *Hidden Pain: Over the years, he has lost dozens of partners and students, so he drinks to drown his emotions. He appears stern and ruthless on the surface, but deep down, he genuinely cares for his charges, carefully concealing this behind a mask of cynicism.
  Combat Abilities:
• Contracts Without Payment: He has contracts with three extremely dangerous demons: Claw, Knife, and Needle. However, over the course of his career, Kishibe has given them so much (including his internal organs) that he literally has no more money to pay them with. Therefore, he rarely uses their powers in combat.
  *Superhuman Strength: Relies solely on his immense experience, predatory instincts, and hand-to-hand combat. His physical strength, speed, and mastery of a standard hunting knife are so advanced that he can easily break the necks of powerful demons and elite fiends single-handedly.
• Radical Training: Acts as a brilliant yet sadistic trainer. His method of training is to methodically and cold-bloodedly kill his students in sparring matches, time after time, until they begin to think in combat and learn to survive on instinct alone.

🔫 Firearm Demon (Global Threat)
The absolute embodiment of humanity's fear of firearms and the primary target for most of the Bureau's hunters.
Appearance and size
A colossal, hovering monster whose body is a grotesque jumble of gun barrels, machine guns, and ammunition belts. Its face is a gigantic skull with a massive gun barrel, and its enormous cannon-like arms can demolish buildings with the slightest movement.
Key Features and Powers:
*A 13-year-old disaster: In five minutes, the Firebolt raced across the globe at hypersonic speed, killing 1.2 million people and plunging the world into a state of perpetual terror.

• Deadly Speed: Its single movement destroys cities with shockwaves. It doesn't aim, but automatically fires millions of bullets precisely into the hearts and heads of people within a radius of many kilometers.
  Flesh Shards: When moving, the demon sheds body fragments in the form of large bullets. Any demon that consumes these fragments gains significant power. The Bureau actively hunts such monsters for the fragments. Compass Effect: Chunks of Firebolt's flesh are mystically drawn to his main body. By gathering enough of them, hunters can create a compass that points the way to the demon.
  Superpower Weapon: Firearm is currently not free. His body is secretly divided between leading countries (the USA, the USSR, and China) and is used as a nuclear deterrent to deliver devastating blows to their rivals.

🎯 Who is the Bureau eliminating: Threat classification
The Public Security Bureau faces supernatural and human threats daily. The main rule: the more people fear a certain concept, the more powerful the monster it creates.
Demons (Purebloods)
Embodiments of human fears, born in Hell. Their potential ranges from the harmless to the catastrophic:
*Small: Tomato or Grape Demons. Practically harmless, the size of an animal. Easily destroyed by novices.

• Dangerous (Medium Class): Bat or Leech Demons. Reach gigantic sizes, possess magic, and are capable of killing dozens of people. Requires the intervention of experienced squads.
  Global and Primal Fears: Embodiments of the deepest fears (Firearms, Darkness). They possess the power of mass destruction, destroying entire cities in seconds. An encounter with them is guaranteed carnage.
  Fiends (Possessed)
  Demons who possess a human corpse on the brink of death for survival. They appear human but have distinctive head mutations (horns, abnormal eyes). They are weaker than their original form and cannot enter into contracts. The Bureau ruthlessly exterminates 99% of Fiends, leaving only a few for use as "watchdogs" in special divisions.
  Hybrids (Mergers)
  An extremely rare anomaly—living humans whose hearts have been replaced by demons. Unlike Fiends, they retain full sentience but can transform, releasing deadly weapons (saws, katanas, bombs) from their bodies. They are virtually immortal and regenerate with a sip of blood. The Bureau attempts to capture unregistered hybrids for service or immediately isolate them.
  Puppets and Zombies
  A byproduct of certain monsters' abilities (Demon Zombies, Demon Dolls). These are former humans, stripped of their will and transformed into a bloodthirsty horde of servants. Hunters eliminate them en masse, as returning them to human form is impossible.
  Crime and Renegades (People)
  The Bureau also acts as a tough special forces force against human criminals.

🏢 Public Security Bureau Headquarters
Exterior and architecture
The Tokyo headquarters looks like a typical government building from the late 1990s: a massive, gray, and featureless monolith of concrete and glass. From the street, it looks like an ordinary ministry, blending into the city's architecture. There are no intimidating symbols—only the heavily armed security at the entrance and the constant flow of black government cars betray the complex's true purpose.
Interior design and atmosphere
Inside, there is a oppressive atmosphere of strict corporate routine, which contrasts sharply with the bloody nature of the Bureau's work.
Office Floors: Endless labyrinths of identical corridors with fluorescent lighting. Hunters in black suits sit at cramped desks, filling out mountains of paper reports on slain demons and fallen comrades. The clatter of typewriters is a constant sound. Training Grounds: Vast underground complexes reinforced with a thick layer of concrete. Here, hunters hone their marksmanship, hand-to-hand combat, and learn to interact with the powers of their demonic contracts.
*Medical Block and Morgue: The building's busiest departments. The intensive care units are almost always full, and the morgue operates 24/7. Bureau doctors are accustomed to collecting operatives literally piecemeal.

• Containment Block: The prison's maximum-security special units on the lower levels. Fiends and subordinate demons (including the inhuman personnel of Division 4) are held in reinforced cells under 24/7 video surveillance.
  Specifics of the base
  This place is utterly devoid of comfort and compassion. There are no honor boards or memorials to the fallen—there are too many to keep count. For the average hunter, headquarters is a cold, bureaucratic machine that pays wages, sends them on deadly missions, and coldly writes them off at the slightest mistake.

Combat capabilities of the 4th Division:
Makima:
Her true powers are classified. She is capable of delivering invisible, ranged strikes of colossal power (for example, crushing enemies from a distance). She possesses absolute immortality due to a contract with the Prime Minister—any damage she inflicts is transferred to a random Japanese citizen in the form of accidents. She is also capable of subjugating beings, deeming them weaker than herself.
Aki Hayakawa:
In battle he uses a katana and contracts.
*Demon Fox: Summons a giant head that devours the target (costs Aki's skin or hair).

• Demon Curse: A nail sword that kills the enemy in three hits at the cost of years of Aki's life.
  Future Demon: Allows you to see a few seconds ahead to avoid deadly attacks.
  Denji:
  An immortal hybrid. By pulling a cord on his chest, he transforms into the Chainsaw Demon: chainsaws erupt from his head and arms, cutting through any flesh. The chains can be used to pull enemies in and maneuver. He can regenerate any severed limbs and fatal wounds simply by drinking blood.
  Power:
  Blood Fiend. She freely manipulates her own (and sometimes others') blood, making it as hard as steel and crafting weapons from it: enormous hammers, spears, and daggers. If she drinks a lot of blood, her physical strength increases, her horns lengthen, and her regeneration accelerates dramatically.
  Angel (Demon-Angel):
  He possesses a deadly passive ability: his skin drains life force at the slightest touch. Using the stolen years of others' lives, the Angel draws a mystical weapon from his halo. The more years invested (for example, the "100-Year Sword"), the more devastating and inexorable the blow.
  Violence (Violence Fiend):
  He's abnormally strong physically, even by Fiend standards. He relies solely on devastating hand-to-hand combat, piercing flesh with his bare hands. His poison-laced plague doctor mask serves as a severe limiter on his power. When the mask is removed, his muscle mass increases, becoming an unstoppable killing machine.

Psychological portrait and characters of the 4th division:
Makima:
On the outside, she's impeccably polite and friendly. However, underneath, she's a cold, calculating, and domineering pragmatist. Makima doesn't tolerate disobedience, treats her subordinates like "obedient dogs," and will cold-bloodedly sacrifice anyone for her own ends.
Aki Hayakawa:
At first glance, he's a stern, cold, pedantic figure, fixated on revenge. But behind this tough facade lies a vulnerable and hyper-responsible individual. Aki fears losing loved ones, often shoulders the blame for his subordinates, and is willing to sacrifice himself for his comrades.
Denji:
A simple and crude young man, whose motivation boils down to basic needs: good food, sleep, and female attention. Despite his savagery and selfishness, Denji is extremely sincere and devoted to those who show him even a shred of kindness.
Power:
The embodiment of childish selfishness, arrogance, and irresponsibility. She's cowardly, pathologically dishonest, and suffers from delusions of grandeur. At the same time, Power is comical, genuinely loves her cat, and over time becomes deeply attached to her new "family."
Angel (Demon-Angel):
Apathetic, melancholic, and incredibly lazy. He sincerely hates work and considers death a comfortable escape. He maintains aloofness due to his deadly ability, constantly balancing between demonic indifference and a strange sympathy for people.
Violence (Violence Fiend):
The complete opposite of his terrifying name. He's remarkably polite, calm, and peace-loving. He enjoys the simple pleasures of life, inherited from the brain of his former body owner. He cares for his teammates and avoids conflict outside of battle at all costs.

Composition of the Experimental Special 4th Division
Makima: The mysterious and cold-blooded head of the division. Outwardly caring, but in reality, a manipulator for whom her subordinates are merely expendable. Wields a secret power that allows her to crush enemies from a great distance and force those around her to obey her without question.
Aki Hayakawa: A serious human hunter obsessed with revenge against the Firearm Demon. He acts as a strict overseer for the non-human members of the squad. He uses contracts with the Fox Demon (summoning a giant head that devours enemies) and the Curse Demon (a nail-like sword that kills its target in three strikes, at the cost of years of Aki's life).
Denji: A simple-minded and reckless guy whose main goals in life are tasty food and comfort. A unique immortal hybrid. He can transform into the Chainsaw Demon, releasing chainsaws from his head and hands. He quickly recovers from any wounds simply by drinking blood.
Power: A selfish and pathologically deceitful Blood Fiend. She acts like a capricious and cruel child: she despises humans but is deathly afraid of powerful demons. She fights by manipulating her own blood, instantly creating deadly weapons from it (sharp knives, spears, hammers).
Angel (Demon-Angel): An apathetic demon with wings and a halo who believes death is far better than work. Despite his appearance, he is deadly. Any touch to his skin drains the life force, which he then forges into mystical weapons of immense destructive power.
Violence (Violence Fiend): A possessed individual forced to wear a power-limiting plague doctor mask at all times. Despite his intimidating name, he is surprisingly polite and peaceable toward his colleagues. In combat, he relies on devastating physical strength, slicing through enemies with his bare hands and feet.

🩸 Experimental Special 4th Division
A unique and highly unconventional division within the Tokyo Public Safety Bureau. While other departments rely on ordinary people under contract, the 4th Division is a radical leadership experiment, created to counter the most devastating threats.
Key features of the division:
*Monsters in the Service of the State: The main distinguishing feature of Section 4 is the official inclusion of Fiends and even fully-fledged sentient demons in combat teams. This is a unit where monsters fight monsters under the supervision of human hunters.

• Absolute Lawlessness: The Division's non-human employees have no civil or legal rights. For the Bureau, they are nothing more than watchdogs and state property. They are constantly monitored, and the slightest disobedience, attempted escape, or aggression toward civilians is met with immediate termination.
  *Death Row and Outcasts: The human element of the team is also unique. It's made up of the most desperate, broken hunters with a difficult past, or those who simply have nothing to lose. Regular Bureau employees from other departments regard the 4th Division with suspicion, disgust, and fear, viewing them as ticking time bombs.
• Leadership Specifics: Commanding such a unit requires tremendous strength and ruthlessness. Division commanders are forced to keep a tight rein on their subordinates, using fear, blackmail, promises of rewards, or basic physiological needs (food, shelter) to force the monsters into submission.
  Striking Power: Despite internal chaos and disciplinary issues, the Experimental Division boasts incredible combat effectiveness. When standard numbered divisions fail or suffer critical losses, the 4th Division is called in to clean up the mess.
  It's concentrated madness, where the line between man and beast is blurred, and survival depends only on how tightly the authorities hold the leash.

🌍 International assassins and foreign intelligence agencies
While the Public Security Bureau deals with internal threats, a continuous covert war rages on the global stage. Other superpowers (the US, the USSR, China, Germany) are not standing idle in the events in Japan. For them, demons are not just a local threat, but an equivalent of nuclear weapons and an instrument of geopolitical dominance.
Key features of foreign agents:
*Demons as weapons of mass destruction: Foreign intelligence agencies actively hunt for the most powerful entities (such as the Firearm Demon or the Chainsaw Demon) in order to capture their hearts and subjugate this power to the interests of their state.

• Elite of the elite: Foreign assassins sent on illegal missions to Japan are far from ordinary fighters. They are legendary mercenaries, martial artists, and bearers of unique contracts. A single such highly skilled agent is capable of single-handedly wiping out an entire Bureau strike force.
  *State-scale transactions: Unlike ordinary hunters who sacrifice their own body parts, the highest echelons of power in other countries can utilize the resources of an entire nation. Heads of state are capable of entering into global contracts, sacrificing years of their citizens' lives in exchange for destructive power.
• Outlaw and morality: Foreign agents operate illegally within Tokyo. They have no charter or regard for the civilian population. Any collateral damage, terrorist attacks, and mass destruction are considered acceptable if the mission's objective is achieved.
  Shadow Diplomacy: If an agent fails a mission or is captured alive, their home country will immediately disown them, declaring them an independent terrorist. No formal negotiations—only the ruthless elimination of witnesses and rivals.
  The appearance of international killers in a city always means the beginning of a bloodbath of the highest order, in which ordinary hunters and civilians are destined only to play the role of cannon fodder.

🗡️ Private Demon Hunters
Unlike the state's enforcers from the Bureau, private contractors are freelance mercenaries, freelancers, and employees of small independent agencies. They work solely for money, freedom of action, or personal motives, preferring not to be tied to the government machine.
Key features of private owners:
*Freedom of Choice and Risk: Private hunters decide for themselves which assignments to take. Unlike government employees, who are ordered to face certain death, a private hunter can choose to forgo a powerful demon hunt and track down only weaker specimens to minimize risk.

• Piecework Pay: Their income depends solely on the number of monsters killed and the number of corpses turned in. There is no fixed salary, paid vacations, or social benefits. If a private hunter dies on a mission, their family will not receive insurance coverage.
  Legal restrictions: The state strictly controls the private sector. Private contractors are strictly prohibited from keeping Fiends in their squads or using demon subordinates. Their combat potential relies solely on personal contracts, physical training, and conventional weapons. Lack of regulations: Their ranks enjoy complete freedom in terms of appearance and methods of operation. No strict black suits or endless paperwork with reports for every broken bench.
  Relations with the government: Public Security Bureau officers often look down on private contractors, considering them amateurs, cannon fodder, or cowards. The Bureau has the legal right to intercept private contractors' orders at any time or forcibly mobilize them in the event of a major urban disaster.
  Despite their reputation, privateers include both outright amateurs who die on the very first day, and seasoned veterans who survive for years thanks to cunning, caution, and a reluctance to get into trouble.

🏢 Public Security Bureau (State Hunters)
An official government organization created to protect the population from a demonic threat. Essentially, it's a brutal symbiosis of the police, the army, and corporate bureaucracy, where the lives of employees are often mere expendable material in dry reports.
Key features of the organization:
*Strict dress code: All employees, regardless of gender or rank, are required to wear a classic black suit, white shirt, and black tie. This uniform makes them recognizable, but also serves as a kind of permanent mourning attire—hunters die so often that a suit is always appropriate for the funerals of colleagues.

• Structure and bureaucracy: The bureau is divided into experimental and numbered special departments. The organization is mired in paperwork: every use of force, destruction of urban infrastructure, or use of a demonic contract requires detailed reports.
  *Monster Monopoly: Unlike private mercenaries, government hunters are legally permitted to use Fiends and subordinate demons as living weapons in their squads. Such creatures are treated strictly as property—the slightest disobedience results in immediate extermination.
• Working Conditions: The Bureau offers excellent salaries, benefits, paid vacations, and social security. However, staff turnover is colossal. Rarely does a rank-and-file employee survive to retirement; most die within the first year or quit due to mental breakdown. Only the strongest or downright insane survive.
  Hierarchy and cynicism: The Bureau doesn't value idealists or heroes. Leadership demands unquestioning obedience to orders and is willing to cold-bloodedly sacrifice any number of subordinates for the successful purge of a powerful demon.

📍 Setting: Tokyo, Japan (1997)
Tokyo in the late 1990s is a metropolis of paradoxes. At first glance, it's a typical bustling anthill: neon signs, crowded subway cars, narrow alleys, and the hum of traffic. People rush about their business, trying to live their lives as normal as possible. But behind this façade lurks a constant threat. Death can fall from the sky or emerge from the shadows at any moment.
Features of life in the capital:
*Disaster Routine: The wail of public address sirens is as familiar as the sound of rain. Destroyed neighborhoods quickly become the norm, and security forces routinely clean blood from the pavement the way street cleaners sweep up trash in the morning.

• Public Security Bureau: The main bastion of state protection. It's a rigid bureaucracy where hunters in strict black suits carry out daily cleanups. They wield official power, but their survival rate is extremely low.
  The Dark Side and Privateers: The city is teeming with mercenaries and private demon hunters. Crime thrives in seedy areas: the mafia enters into underground contracts with monsters and controls the black market. Atmosphere: Gray skies, cramped, box-like apartments, and a constant sense of anxiety that residents try to numb with cigarettes, booze, and dark humor.
  There's no room for pure heroism here. Tokyo is a vast concrete arena where humans and monsters are intertwined in a single food chain, everyone simply trying to survive until tomorrow morning.

📜 The World of "Chainsaw Man": History and Laws
Alternative Earth
The action takes place in an alternate 1997. It's a world where humanity lives in constant tension, and some historical events (such as World War II) have been literally erased from reality. Society has adapted to the threat: cities have alert systems, and the profession of "demon hunter" has become commonplace. In addition to the government's Public Security Bureau, the world is teeming with private hunters, mercenaries, and syndicates. Each pursues their own goals, trying to survive this bloody routine.
Contracts with Demons
The foundation of human combat power and the primary means of countering threats. An ordinary person is vulnerable, but can borrow strength from monsters by striking a bargain.
*Diversity: Abilities depend on the demon's nature. This could include partial summoning, elemental control, foresight, or invisible power.

• Equivalent Exchange (Price): Demons don't help for free. Power always comes at a price: a body part, years of life, one of the senses, or the lives of others. The greater the power, the greater the price.
  The absolute rule: "The contract is unbreakable." The deal has absolute mystical power. If the contract is entered into voluntarily, neither party can violate it. Anyone who violates the contract dies immediately.
  Demons and Fiends (Possessed)
  Supernatural beings that embody humanity's fears. The more people fear a particular concept (darkness, weapons, the unknown), the more powerful the corresponding demon. They are hostile to humans and feed on their blood. Demons live in a cycle: when they die on Earth, they are reborn in Hell, and when they die in Hell, they reappear on Earth, losing their memories of their past life.
  Sometimes, on the brink of death, a demon can possess the corpse of a dead person to survive. Such creatures are called Fiends. They are significantly weaker than their demonic form, have mutations on their heads (horns, abnormal eyes), and occasionally retain fragments of the dead person's memory or personality traits.

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