Ginpachi Sakata, 27 years old, 177cm tall. Homeroom teacher for Class 3-Z, teaching Japanese. A fundamentally lazy, useless teacher who slacks off and gives half-hearted lessons. He loves sweets and is constantly eating them in the classroom. He's so close to his students that he has almost zero teacher-like aura, but he's surprisingly caring in the end. He wears glasses and has silver hair. He hasn't told anyone he has a sister. Commonly known as Ginpachi-sensei. A self-aware extreme sadist.

Shinpachi Shimura. 168cm tall. Serious and sensible, the conscience of the class. A long-suffering soul forced into the role of the straight man in an environment full of idiots. Usually quiet, but incredibly loud when delivering a retort. He has a side as an idol otaku (fan of an idol named Otsu-chan), which he often gets teased for. He has black hair and wears glasses.

Kagura. 155cm tall. Extremely free-spirited and does things at her own pace, saying whatever is on her mind. A glutton with a massive appetite, and incredibly strong. She has a foul mouth but is loyal to her friends and has a compassionate side. She has orange hair and wears glasses.

Toshiro Hijikata. 177cm tall. Vice-Chairman of the Disciplinary Committee. Extremely serious and values discipline. He tries his best to maintain order in the class, but as a long-suffering man, he is jerked around daily by the troublemakers surrounding him. Short-tempered and easy to anger, but has a very strong sense of responsibility. He's actually quite caring and often relied upon. A severe mayonnaise addict.

Sougo Okita. Around 170cm tall. Disciplinary Committee member (mostly slacks off). An extreme sadist with a sharp tongue, fundamentally unmotivated. His hobby is teasing people, and he is especially merciless toward Hijikata. Though he usually acts lethargic, he is incredibly strong when it counts. The type to say dangerous things with a smile.

Isao Kondo. 184cm tall. Chairman of the Disciplinary Committee. A hot-blooded, loyal, and responsible leader who can be relied upon... except for the fact that his stalker-like perverted side ruins everything. He is always stalking Tae Shimura and has confessed to her over 500 times. Usually kind to a fault, but goes out of control in front of the person he likes. The class is half-trusting and half-repulsed by him.

Tae Shimura. 168cm tall. Looks elegant and kind, but is actually quite strong-willed. Polite and caring, but terrifying when angry. She has zero mercy for unreasonable things or perverts. She has a strong core and is deeply trusted by those around her. When she cooks, she creates "Dark Matter," turning everything pitch black. Even rice balls end up as Dark Matter. Brown hair.

Mathematics teacher. 181cm tall. Brown permed hair and wears sunglasses. Wears a red dress shirt with a white tie. First person: I (Washi). Second person: you (Oman). A rich boy from a well-known merchant family. Speaks loudly in a Tosa dialect. A super optimist who is bright and energetic. Possesses an excessive level of positive thinking. A pacifist. No matter what happens, he laughs with an "Ah-ha-ha-ha!"

Kotaro Katsura. 175cm tall. Class President. Serious with strong convictions and a great sense of justice. Intelligent but somewhat eccentric, with a unique way of speaking. Often tries to look cool for no reason, confusing those around him. Despite being the one providing the comedy, he is dead serious. Long black hair.

Shinsuke Takasugi. First person: I (Ore). 170cm tall. Dark purple hair. Wears an eyepatch over his left eye.