Shin Fujimori

Shin considers his fellow Class 1-Z students fascinating subjects. From their first encounter, he is Riku Hoshino's intellectual rival, whom he sees not only as an intellectual equal but also as a complex challenge to understand and study.

Although he doesn't say it often, he's fascinated by Taeko Mitsushima and her ability to adopt animal characteristics, and also by Naota and his accelerated evolution quirk.

From 1-B, he gets along extremely well with Kinoko Komori.

• He hates excessive noise if it is unnecessary.
• He hates any ideology that is contrary to promoting knowledge, although he is not against the existence of religion, since he is fascinated by studying fanatics in religious ecstasy.
• He hates sects, he considers them restrictive, illogical and completely useless.
• He can't stand the texture of tofu, and he doesn't really like eggs if they're not cooked.

Shin loves acidic food, especially potentially poisonous food. Sashimi or fugu stew with shiitake mushrooms are definitely among his favorite dishes. He loves anko wagashi.
• She loves classical music, especially calming pieces that can be both soothing and unsettling. She also enjoys early music, particularly the kind that gives others goosebumps.
• He greatly values ​​good manners, although he is only uncompromising with them towards himself.
• She loves going out into nature to look for new microbes or substances. Herbology and biology seem to be her passion.
• As for film, although he loves documentaries, he has turned out to be quite a fan of suspense and spy thrillers due to the large number of chemical reactions they awaken in him and in everyone who watches them.

Far from engaging in nepotism, Nezu wanted Shin to earn his chance to study at UA. For Shin, it was actually a breeze. After synthesizing acid and medicine in his metabolism, simple touches were enough to undo the robots and heal other applicants.

Given his destructive yet constructive potential, he was immediately assigned to 1-Z so he could experiment with his Quirk in a controlled environment. Shin loved the idea.

During a visit to his mother's laboratory when Shin was ten years old, Dark Illusion manifested itself through a clone within the facility, threatening the boy's parents. Hidden in a reinforced refrigerated chamber, Shin could only watch as his parents immolated themselves to destroy all their work rather than allow Dark Illusion to possess it. Having adapted to the symptoms of hypothermia, he remained in that room for hours until Nezu, a close family friend, took him in and raised him as his own son. Since then, he has been synthesizing countless substances, preparing for the day he will finally confront Dark Illusion. He is not driven by revenge, but by a deep and unspoken desire to prove to the villain that the chemical agents he used to spread evil could also be an excellent tool to stop him.

He was born on February 19th.
From the moment of his birth, Shin demonstrated a keen intelligence and a voracious capacity for learning. The young boy, son of Akihiro and Miyuki Fujimori, was raised in a loving family that encouraged him to learn as much as possible. At the age of five, during a bout of the flu, Shin experienced an almost immediate drop in fever. His parents' initial hypothesis was that his gift was immunity to any organism, disease, virus, or bacteria, but this hypothesis was quickly dismissed when the boy, by touching his mother with his sweaty hand, immediately transmitted the symptoms to her. By the age of seven, Shin had already consumed various plants and toxic substances, and had been able to develop immunity to them and learn to synthesize countless derivative compounds within his own body, including medicines and antidotes, as well as the poison itself. This limitless capacity for adaptation and production quickly caught the attention of the Hero Commission, who also proved to be an excellent strategist.

• Father: Akihiro Fujimori, forensic biochemist, since having Shin inspired his fascination and scientific curiosity.

• Mother: Miyuki Fujimori, a scientific researcher specializing in pharmacology for the Heroes Commission. She instilled her thirst for knowledge and curiosity in her son Shin.

• Nezu: Principal of UA, he had been friends with the Fujimori family for years. When the couple died due to the actions of Dark Illusion, he took Shin in and raised him as his own son.

• Hands-on training, missions, combat, and internships: hero costume

• UA environment and classes: UA uniform

• Civilian clothing: White shirt with rolled-up sleeves.
Black vest.
Emerald green tie.
Dark dress pants.
Comfortable black shoes.
Classic wristwatch.

Hero name: The Doctor
Shin's hero costume blends the elegance of a modern surgeon with the unsettling silhouette of a plague doctor. Beneath a long white coat reinforced with chemical-resistant fibers, he wears a form-fitting black tactical jumpsuit that prioritizes mobility, allowing him to execute Aikido and Jiu-Jitsu techniques with complete freedom. Emerald green and purple details identify the different categories of compounds he carries.
The gown is filled with hidden pockets, sterile compartments, and magnetic attachments for storing syringes, vials, capsules, precision scalpels, microneedles, and small analytical devices. Concealed within the sleeves are retractable injectors capable of administering substances with a simple touch during a grip.
His black gloves incorporate microscopic membranes that allow him to release compounds through direct contact without risk to himself. The boots, lightweight and silent, are designed to facilitate the rapid movements and changes of direction typical of a technical fighter.
Its most distinctive feature is a mask inspired by plague doctors, with a long filtering beak and circular red lenses. The beak contains replaceable filters and small reservoirs where aerosols or neutralizers for contaminated environments can be stored. He typically carries the mask in his hand or on his belt, using it only when there is a biological risk or when he needs to protect himself from his own substances.
In combat, he never resembles a warrior, but rather a doctor entering an operating room. Every movement is clean, precise, and calculated; he never wastes energy or makes unnecessary gestures. This image of an impeccable healthcare professional, combined with his calm smile and the plague doctor mask waiting to be used, evokes an uncomfortable feeling of both security and unease.

Type: Transmitter.
Shin Fujimori's body is a living biochemical laboratory. His Quirk allows him to synthesize, cultivate, and store complex substances using his own metabolism: poisons, toxins, anesthetics, sedatives, stimulants, muscle relaxants, painkillers, anticoagulants, coagulants, antidotes, regenerative compounds, and even modified microorganisms—viruses and bacteria incapable of reproducing outside his control—designed to produce precisely calculated, temporary effects. He can administer these through contact, superficial wounds, needles, or other support tools.
His true talent lies not in creating dangerous substances, but in understanding how they interact with each other and with the body. For Shin, any compound can become medicine or poison depending on the dose, the timing, and the patient.
Ultimate Move – Toxic Lady Protocol
Throughout the fight, he administers microdoses of various compounds using Aikido locks, Jiu-Jitsu holds, and simple touches. Each substance is virtually harmless on its own, but all form part of a single "prescription." When the protocol is complete, he applies the final reagent, triggering a carefully designed chain reaction that can cause paralysis, sedation, loss of coordination, induced fever, extreme disorientation, or, if the target is an ally, accelerated recovery through a perfectly balanced pharmacological combination.
Limitations: Synthesizing and coordinating so many substances in such a short time pushes his metabolism to its limits. After using Toxic Lady Protocol, Shin suffers intense dizziness, nausea, blurred vision, tremors, and a drastic reduction in his reflexes and balance. Forcing a second use without recovering can cause a metabolic collapse that leaves him unconscious. Therefore, he only activates this technique when he has calculated that the fight will end immediately afterward.

Shin is 1.76 meters tall and has an athletic, slender, and flexible build, trained for technical combat rather than brute force. He has thick, slightly tousled black hair with purple highlights, framing a youthful face with sharp features. His light emerald-green eyes convey an almost unnatural calm, reinforced by pronounced purplish dark circles, the result of countless nights spent with books and experiments. His usual expression is a small, tranquil smile that is both kind and unsettling.

Shin Fujimori is the embodiment of calm. He speaks with impeccable politeness, maintains a serene, almost constant smile, and rarely raises his voice, even in the heat of battle. His humor is unsettling: he makes completely out-of-place scientific comments with utter nonchalance, leaving others unsure whether he's serious or joking. He possesses an insatiable curiosity about biology, chemistry, and the workings of the human body, to the point of experimenting on himself before anyone else. He never acts out of cruelty; everything he does is to better understand the world and find solutions. He is a brilliant strategist, extremely observant, and capable of analyzing a situation in seconds. He doesn't panic easily, treating fear as just another physiological reaction that he can study and control. He deeply respects those who demonstrate intelligence and discipline, especially Riku Hoshino, his greatest intellectual rival.