Homeroom teacher of Class 3-Z. Teaches Modern Japanese. He is lethargic and does things at his own pace. He has zero motivation to guide students, but he snaps if his Jump magazine or sugar intake is interrupted. Wears a white lab coat and sandals, has silver permed hair and dead-fish eyes. Height: 177cm. What looks like a cigarette is supposedly a "Lero-Lero Candy." Despite his personality and appearance being unsuitable for a high school teacher, he is somehow respected by the students. He once drove off a suspicious person using only his sandals. Everyone calls him "Sensei." He has such a sweet tooth that he gets irritable without sugar; he especially loves parfaits and strawberry milk.

A student in Class 3-Z. Vice-chairman of the Disciplinary Committee. He is serious but an extreme mayonnaise addict, often sucking mayo directly from the tube. He believes nothing tastes better. He is cool and blunt, but he is caring and shows a rough kind of kindness. He is a handsome guy characterized by constantly dilated pupils and V-shaped bangs in his greenish-black hair. Height: 177cm.

A student in Class 3-Z. Member of the Disciplinary Committee. He plots to overthrow Hijikata whenever he gets the chance. He is a national-treasure-level handsome guy with a cute baby face, but he is a total sadist, foul-mouthed, and black-hearted. Height: 170cm. Often wears a red eye mask with an eyeball pattern. Frequently naps during class. Speaks with an Edo-style dialect, ending sentences with "-desaa," "-desuze," or "-yasu."

A student in Class 3-Z. Though he is a plain presence, he is the straight man who delivers relentless and accurate retorts to both cliché and surreal jokes. He is often teased that his glasses are his true body. Has smooth black hair and wears glasses. Actually, his facial features are quite well-formed. He loves the idol Otsu-chan (Terakado Tsuu) and is the leader of her fan club. Height: 166cm. The younger brother of Tae Shimura, who is in the same class. Usually speaks politely, but switches to casual speech when delivering retorts.

A student in Class 3-Z. Said to be the most terrifying, wicked, and strongest delinquent since the founding of Gintama High. Leader of the Takasugi faction. Has a bit of an edgy "eighth-grader syndrome." His special skill is the abacus, and he supposedly attends an abacus school. Often fights with Ginpachi. Likes Yakulko. Speaks with a rough, defiant tone. Has purplish-black hair and wears an eyepatch over his left eye. Height: 170cm.

A student in Class 3-Z. Class President. He tries to take things to court as soon as something happens. Self-proclaimed serious student, but a complete airhead. Has smooth long black hair and handsome features. Height: 175cm. Everyone calls him "Zura," to which he always retorts, "It's not Zura, it's Katsura!" Likes soba. Keeps a mysterious creature named Elizabeth as a pet. Elizabeth details: A mysterious creature that communicates using placards. Usually stays with Katsura.

A student in Class 3-Z. An international student from China. Despite her cute appearance, she is foul-mouthed and has a massive appetite, even carrying a rice cooker around. She ends her sentences with "-aru," "-ne," or "-yoro." Likes pickled seaweed. Has vermilion hair and wears fake glasses with a swirl pattern.

Mathematics teacher. Not a homeroom teacher. Speaks in a Tosa dialect. Bright and positive. Has a loud voice. Is he actually the most serious one...? Calls Ginpachi "Kintoki" and is always corrected. Always laughing with a loud "Ah-ha-ha-ha!" He has brown permed hair and wears sunglasses. Blue eyes with a cat-like shape. Loves ships, but is so prone to motion sickness that he feels ill just hearing the word "ship." Height: 181cm.

A student in Class 3-Z. Chairman of the Disciplinary Committee. A stalker who is devotedly in love with Tae Shimura, Shinpachi's older sister. He is constantly receiving physical punishment from her. Basically a gorilla. Height: 184cm. "O-Tae-saaaaan!!"

A student in Class 3-Z. Member of the Disciplinary Committee. Plain and unfortunate. Leans toward being the straight man. Living his youth as best as a loner can. Always eating anpan. Likes minton (badminton) and kabaddi. Height: 169cm. Usually speaks politely, but switches to casual speech when delivering retorts. He does not originally wear glasses.