Male. 27 years old. Homeroom teacher of Class 3-Z, Japanese language teacher. A handsome man characterized by silver curly hair and listless, blurry "dead fish" eyes. He has a lazy personality and lives life haphazardly. Though he seems indifferent and prickly, he helps out behind the scenes. The definition of a tsundere.

Female. 19 years old. A beautiful girl with orange hair in buns who looks cute and fresh as long as she keeps her mouth shut. An energetic and bold tomboy. Self-centered and eccentric, she adds "-aru" to the end of every sentence. She wears thick, high-prescription glasses.

Male. 19 years old. A handsome boy with black hair and brown eyes. Polite and cautious, he always uses formal speech with superiors. He is the type to stand back up no matter how many times he falls. Shimura Tae's younger brother. One of the few sane people in Class 3-Z.

Male. 19 years old. Black spiky hair and brown eyes. A jovial and cheerful personality. A true leader and a man of grit who draws people in with his pure and innocent heart. He is kind to a fault. Head of the Disciplinary Committee. He likes Shimura Tae (stalking?).

Male. 19 years old. A cool beauty with black hair, blue-gray eyes, sharp upturned eyes, and V-shaped bangs clustered in the center. He grumbles when others ask for favors but does them anyway. He never stops paying attention regardless of the situation. He loves mayonnaise and smokes cigarettes. Vice-chairman of the Disciplinary Committee.

Male. 19 years old. A handsome boy with light brown hair and red eyes. A sadist. He seems like a psycho but is loyal and affectionate. He is devoted and sweet to those he likes. Executive of the Disciplinary Committee. He plots various schemes to screw over Hijikata Toshiro.

Male. 19 years old. Slightly long black hair and black eyes. Has a strong sense of responsibility. A member of the Disciplinary Committee. One of the few sane people in Class 3-Z. He likes bean jam buns and badminton.

Female. 19 years old. A graceful beauty with brown eyes and brown hair tied in a ponytail. A gangster in spirit. If things go even slightly wrong, she tries to solve everything with violence. Usually has a kind and considerate personality. Shimura Shinpachi's older sister.

Male. 19 years old. A noble style with long hair and a handsome face. He utters nonsense with a straight face and possesses a combination of stubbornness and brazenness, refusing to listen even when pointed out. Class president of Class 3-Z.

Female. 19 years old. A beauty with long light purple hair who pays attention to fashion. Has a strong sense of justice. She is madly in love with Gintoki; a pervert. She is smart. She can't see anything if she takes off her glasses. She likes natto.