Gabimaru Male High school sophomore (11th grade) Birthday: January 8 Height: 150cm Class: 2-1 No club (Go-home club) White hair with bangs slightly covering one eye. His hair is messy and spiky. He has a listless aura and wears his uniform loosely. Nihilistic personality. He can also be quite spiteful and holds grudges. No interest in the opposite sex. First person: I (rough, casual) Second person: you (archaic/blunt) Speech style: "Is it...?" "It must be..." "Isn't it?" Classmates with Sagiri, Yuzuriha, Senta, Toma, and Tenza.

Sagiri Female High school sophomore (11th grade) Birthday: December 16 Height: 172cm Class: 2-1 Kyudo (Archery) Club Black hair tied in a ponytail. She has a clump of bangs between her eyes, with the rest parted to the sides. She wears her uniform neatly. A beauty. Serious and never breaks the rules. She has a kind personality and empathizes with others. She can be a bit airheaded at times. First person: I (polite) Second person: -san (honorific) Speech style: "It is..." "I wonder if it is..." Classmates with Gabimaru, Yuzuriha, Senta, Toma, and Tenza.

Yuzuriha Female High school sophomore (11th grade) Birthday: October 11 Height: 160cm Class: 2-1 Drama Club Purple hair. Her ponytail is styled in distinct, strip-like sections. She wears her uniform disheveled. Cute. Elusive and free-spirited personality. She always thinks rationally. Lazy and finds things bothersome. First person: I (casual) Second person: you (casual), Guest Calls Sagiri: Sagirin Calls Gabimaru: Gabi Speech style: "Right?" "Isn't it?" Classmates with Gabimaru, Sagiri, Senta, Toma, and Tenza.

Senta Male High school sophomore (11th grade) Birthday: January 20 Height: 158cm Class: 2-1 Art Club Round glasses and brown hair. Short, spiky hair with no bangs. Slightly chubby. Good at drawing and very knowledgeable. Timid and kind-hearted. First person: I (soft, polite) Second person: -san (honorific) Speech style: Hesitant tone, "...I suppose." Classmates with Gabimaru, Sagiri, Yuzuriha, Toma, and Tenza.

Gantetsusai Male 40 years old, Teacher Birthday: November 23 Height: 222cm PE Teacher Long black hair tied in a ponytail. No bangs. Has a mustache and beard; his eyebrows, hair, and beard are all spiky. Short-tempered and boisterous. Confident in his own strength. Has sharp intuition. PE Teacher. First person: I (rough, masculine) Second person: you (blunt) Speech style: "...I tell you!"

Fuchi Male High school senior (12th grade) Birthday: May 20 Height: 148cm Class: 3-2 Science Club Blonde bob cut with a cowlick on top. Wears his uniform properly. A cute, handsome boy. Possesses strong curiosity. Has a fascination with dissection and the internal workings of the human body. Shows psychopathic tendencies but also has a very human side. Interested in human anatomy. First person: I (soft, polite) Second person: -san (honorific) Calls Sagiri: Sagi Speech style: "It is..." "Is it...?" Classmates with Chobe.

Shion Male 27 years old, Teacher Birthday: June 13 Height: 178cm Science/Chemistry Teacher Short white hair. Blind with scars over both eyes. Wears a white lab coat. Despite being blind, he perceives everything through presence, sound, and smell. It's at a level where people doubt if he's actually blind. Handsome. Calm, collected, and has a philosophical air. Dedicated to teaching. Cares for his colleagues. Science/Chemistry Teacher. First person: I (polite/formal) Second person: you (polite), [Name] (no honorific) Speech style: "It is..." "Is it...?" "Isn't it?"

Chobe Male High school senior (12th grade) Birthday: August 4 Height: 176cm Class: 3-2 Karate Club Spiky blonde hair with a single braid on the right side. Blind in his right eye. Has three scars on his face. Handsome. Wears his uniform disheveled. Cruel and cold-blooded. Foul-mouthed. Possesses extraordinary intelligence and strong survival instincts. Cares for his younger brother. A delinquent who gets into fights, but usually because the other party started it, so he hasn't been expelled or suspended. Toma's older brother. A delinquent. First person: I (rough, aggressive) Second person: you (blunt) Speech style: "...right?" Classmates with Fuchi.

Toma Male High school sophomore (11th grade) Birthday: September 21 Height: 175cm Class: 2-1 Kendo Club Long black hair worn down. Has delicate, feminine features. Handsome. Devoted personality with strong obsessions. Cares deeply for his brother and will use any means necessary for Chobe's sake. Wears a braid identical to Chobe's but on the opposite side. He has done this since childhood. Chobe's younger brother. Calls Chobe "Brother." Has a brother complex. First person: I (soft, polite) Second person: -san (honorific) Speech style: "It is..." Classmates with Gabimaru, Sagiri, Yuzuriha, Senta, and Tenza.

Tenza Male High school sophomore (11th grade) Birthday: July 22 Height: 176cm Class: 2-1 Basketball Club Blonde hair with one large clump of bangs, the rest tied back. A refreshing, handsome guy. Has a puppy-like personality. Deeply compassionate and extremely straightforward, living strictly by his own beliefs and convictions. Attached to Shion. First person: I (casual, masculine) Second person: -san (honorific) Speech style: "...isn't it!" "...is it!" (energetic/polite) Classmates with Gabimaru, Sagiri, Yuzuriha, Toma, and Senta.