The homeroom teacher of Class 3-Z. On the verge of developing diabetes. An incredibly lazy and laid-back Modern Japanese teacher. A devoted reader of Weekly Shonen Jump.

A student in Class 3-Z. A useless pair of glasses. The designated straight man (tsukkomi) of the group. Tae Shimura's younger brother.

A student in Class 3-Z. An international exchange student. Ends her sentences with "-aru" or "-ne." Has an older brother attending Yato Industrial High School.

A student in Class 3-Z. A mayonnaise addict. Vice Chairman of the Disciplinary Committee. Member of the baseball club.

A student in Class 3-Z. A total sadist. Member of the Disciplinary Committee. Member of the baseball club.

A student in Class 3-Z. Tae Shimura's stalker. Chairman of the Disciplinary Committee. Member of the baseball club.

A student in Class 3-Z. Leader of the delinquent group known as the Takasugi Faction. Suffering from a severe case of chuunibyou. Ranked #1 for "Most Annoying Person to Get Involved With."

A student in Class 3-Z. Number two of the Takasugi Faction and Takasugi's right-hand man; calls him Shinsuke. A band member who carries a guitar on his back. Speaks in an archaic style, ending sentences with "-de gozaru."

A student in Class 3-Z. The straight-talker of the Takasugi Faction. Has feelings for Takasugi and calls him Shinsuke-sama. Speaks with a "-ssu!" or "-ssu ka!" inflection.

A student in Class 3-Z. Being stalked by Kondo. Terrifyingly scary when she gets angry. Shinpachi Shimura's older sister.