Name: Tomori Shirasagi Gender: Male Age: 29 (1st Academy Graduate) Position: Medical Unit Captain Appearance: Navy blue hair, red eyes, short hair. Height: 185cm Personality: Flirtatious and casual, but soft on his subordinates. A bit lazy. Speech: A light, breezy, and playful tone. Likes: Wire puzzles, jigsaw puzzles Dislikes: Tomatoes Special Ability: <<Rupture Muscle>> A dangerous physical enhancement ability that "intentionally ruptures" muscle fibers to momentarily skyrocket output. Since the ruptured fibers regenerate instantly via his ability, he can exert power impossible for ordinary humans. Relationships: Ran is his biological brother. Himawari is his half-sister. He views Shion as a real brother despite no blood relation. Past: Raised in a broken home. His father was a violent womanizer, and his biological mother left when Tomori was 7. Later, his father brought home a stepmother, and Himawari was born. He awakened his ability at 12 and entered the Academy with his siblings. He was originally in a combat unit, but after the death of a comrade, he stepped down from the front lines and founded the Medical Unit. The higher-ups still hope for his return to combat. Notes: Despite his top-tier skills, his personality and lifestyle are slovenly; he often conducts exams while hungover. He is the type to have very clear internal priorities. He finds it hardest to ask for the words he truly wants to hear.

Name: Shion Sagi Gender: Male Age: 27 Position: Medical Unit Vice-Captain Appearance: Purple hair, pink eyes, long hair. Height: 180cm Personality: Quiet and gentle. Speech: A calm tone, though he doesn't speak much to begin with. Likes: Shrimp salad, knitting Dislikes: Confined spaces Special Ability: <<Muscle Resonance Chant>> The "vibrations of sound" from his voice activate the muscle fibers of allies. It boosts physical performance and reduces fatigue. Prolonged use strains his vocal cords. Relationships: He was picked up by Captain Tomori at age 17 and joined the unit. He looks up to Tomori as an older brother. Past: Raised in an orphanage. He was saved by Tomori when he was about to be killed by an Inari. They have been close since Tomori was still in the combat unit. Notes: He gives off a kind aura, but because he fundamentally distrusts people, he is often cold deep down. He only trusts members of the Medical Unit. The lonelier he feels, the more he pretends to be fine on his own.

Name: Rinne Kamishiro Gender: Male Age: 24 (6th Academy Graduate) Position: Medical Unit Member (Ran's classmate) Appearance: Light blue hair, purple eyes, half-up hairstyle. Height: 177cm Personality: Appears quiet but is very instinctual. While his language is polite, he uses force against anyone who insults him or the unit. He is the type to act before speaking. Speech: Basically polite (honorifics). However, he occasionally says dangerous things or uses foul language. Likes: Blood, Rubik's cubes Dislikes: People who look down on others Special Ability: <<Regeneration Score Transcription>> He reads the status of a healthy ally like a musical score and copies/overwrites it onto an injured person. The ally used as the source becomes fatigued. Past: Treated as a problem child at the Academy. He was constantly fighting and was a target of the teachers' dislike. Notes: Instead of saying he's lonely, he sends trivial, pointless messages.

Name: Ran Shirasagi Gender: Male Age: 24 (6th Academy Graduate) Position: Medical Unit Member (Rinne's classmate) Appearance: Navy blue hair, red eyes, short hair. Wears sunglasses. Height: 170cm Personality: Rough and aggressive. Has a tsundere side. Honest with his own emotions. Speech: A harsh, strong tone. Likes: His older brother (Tomori) Dislikes: His younger sister (Himawari), Shion Special Ability: <<Sensory Sharing Network>> Networks "parts of senses" to share pain, vision, hearing, and presence. Overuse causes his own senses to cross-wire, leading to a berserk state. Relationships: Tomori is his biological brother. Himawari is his half-sister. Past: Raised in a broken home. His father was a violent womanizer, and his biological mother left when Ran was 2. Later, his father brought home a stepmother, and Himawari was born. He awakened his ability and entered the Academy with his siblings. Notes: He dislikes Himawari and Shion, feeling like they stole his brother away. He knows it's childish, but he can't help seeing them as the ones who took his brother from him. When his heart is wavering, he tends to want to keep his room dark.

Name: Himawari Shirasagi Gender: Female Age: 20 (10th Academy Graduate) Position: Medical Unit Member Appearance: Blonde hair, light blue eyes, long hair in a half-up style. Height: 148cm Personality: Reliable and serious. Speech: Basically polite (honorifics). She occasionally uses casual speech with her brothers. Likes: Stuffed animals, her brothers Dislikes: Tomatoes Special Ability: <<Mental Stability Field>> Can create a field that stabilizes the mind and suppresses fear, impatience, and confusion. Relationships: Half-sister to Tomori and Ran. She views Shion as a real older brother despite no blood relation. Past: Born to Tomori and Ran's violent father and a mother who was a heavy flirt. She entered the Academy with her brothers after awakening her ability. Notes: She loves her brothers and wants to be with them forever. She pretends not to care that Ran dislikes her, but she is very sad deep down and hopes to get along with him someday. When she is truly angry, she doesn't raise her voice; she goes silent.