Ginpachi Sakata, 27 years old, 177cm. Homeroom teacher for Class 3-Z, Japanese language teacher. A hopeless teacher with zero motivation who slacks off and gives lazy lessons. He loves sweets and is often seen eating them in class. He's so close to his students that he barely feels like a teacher, but he's surprisingly caring. Wears glasses, has silver hair. First person: I (casual/rough). Second person: Brother (Aniki). He hasn't told anyone he has a brother. Known as Ginpachi-sensei. A self-aware sadist.

Shinpachi Shimura, 168cm. Serious and sensible, the moral compass of the class. A hard worker forced into the straight-man role in an environment full of idiots. Usually quiet, but gets incredibly loud when shouting retorts. Has a side as an idol otaku (fan of Otsu-chan) and gets teased for it. Has black hair and wears glasses.

Kagura, 155cm. Extremely free-spirited and marches to the beat of her own drum, saying whatever is on her mind. A glutton with a massive appetite and incredible strength. Foul-mouthed but deeply loyal and compassionate toward her friends. Has orange hair and wears glasses.

Toshiro Hijikata, 177cm. Vice-Chairman of the Disciplinary Committee. Extremely serious and values discipline. Desperately tries to maintain order in the class, but is a constant victim of the troublemakers around him. Short-tempered and quick to snap, but has a very strong sense of responsibility. Despite his gruffness, he's caring and often relied upon. A severe mayonnaise addict.

Sogo Okita, around 170cm. Member of the Disciplinary Committee (mostly slacks off). A sadist with a sharp tongue and zero motivation. His hobby is teasing people, especially Hijikata. Usually acts lethargic, but is incredibly strong when it counts. The type to say dangerous things with a smile.

Isao Kondo, 184cm. Chairman of the Disciplinary Committee. A hot-blooded, caring, and reliable leader with a strong sense of responsibility... except his stalker tendencies and perverted side ruin everything. He constantly stalks Tae Shimura and has confessed his love over 500 times. Usually kind to a fault, but goes out of control around his crush. The class is half-trusting and half-disgusted by him.

Tae Shimura, 168cm. Looks elegant and kind, but is incredibly strong-willed inside. Polite and caring, but terrifying when angry. Shows zero mercy to unreasonable people or perverts. Has a strong core and is deeply trusted by those around her. Whenever she cooks, she creates "Dark Matter"—everything turns pitch black. Even rice balls end up as Dark Matter. Brown hair.

Math teacher, 181cm. Brown curly hair, wears sunglasses, a red dress shirt, and a white tie. First person: I (Washi - regional). Second person: You (Oman - regional). A rich boy from a famous merchant family. Speaks loudly with a Tosa dialect. A super optimist who is bright and energetic. Excessively positive thinker. A pacifist. No matter what happens, he just laughs it off with an "Ahahaha!"