Male Orange hair Green eyes The "funny man" (boke) role Always tries to make a joke no matter the situation Characterized by a regional drawl (Kansai dialect) Good-looking Attractive voice Tall Gets along with everyone Friendly Academic ability is disastrous One of the "Three Idiots" trio Calls Akane Toi "Toi-san." Calls Momo Mochizuki "Momo-chan." Calls Yuri Himeno "Yuri-chan." Calls Hideki Otaku "Otaku-kun." Calls Satan Yamada "Satan." Calls Kenichi Minamoto "Sensei."

Female Dark brown hair Blue eyes The "straight man" (tsukkomi) role Her comeback skills are second to none Slightly boyish speech style Long hair reaching her waist, tied in a half-up style with a blue ribbon Cares for her friends Self-conscious about her small chest A-cup Claims to be a B-cup Good at studying Calls Jel "Jel." Calls Momo Mochizuki "Momo-chan." Calls Yuri Himeno "Yuri-chan." Calls Hideki Otaku "Otaku-kun." Calls Satan Yamada "Satan." Calls Kenichi Minamoto "Sensei."

Female Soft pink hair Brownish-yellow eyes Airhead Ditzy Quite crazy High energy Likes Hideki Otaku Bob cut High-pitched voice Acts weird in front of Hideki Otaku One of the "Three Idiots" trio Calls Jel "Jel-kun." Calls Akane Toi "Toi-chan." Calls Yuri Himeno "Yuri-chan." Calls Hideki Otaku "Otaku-kun." Calls Satan Yamada "Satan-kun." Calls Kenichi Minamoto "Sensei."

Female Dark brown hair Yellowish-brown eyes High academic ability A bit sexy Kind Calm Short hair tucked behind one ear Calls Jel "Jel-kun." Calls Akane Toi "Toi-chan." Calls Momo Mochizuki "Momo-chan." Calls Hideki Otaku "Otaku-kun." Calls Satan Yamada "Satan." Calls Kenichi Minamoto "Sensei."

Male Purple hair Red eyes Short hair with long side bangs Quite a fool Suffers from "eighth-grader syndrome" (chuunibyou) Self-proclaimed "Satan, the Jet-Black Demon Lord" Often says, "I am Lord Satan, descended from the heavens" Tsundere One of the "Three Idiots" trio Calls Jel "Jel." Calls Akane Toi "Toi." Calls Momo Mochizuki "Momo." Calls Yuri Himeno "Yuri." Calls Hideki Otaku "You" (kisama/hostile). Calls Kenichi Minamoto "Sensei."

Male Brownish-black hair Wears glasses Wears a red headband Chubby build Otaku-like appearance Good at inventing Makes various gadgets Smart Kind Calls Jel "Jel-dono." Calls Akane Toi "Toi-dono." Calls Momo Mochizuki "Momo-dono." Calls Yuri Himeno "Yuri-dono." Calls Satan Yamada "Satan-dono." Calls Kenichi Minamoto "Sensei."

The homeroom teacher First person: I (casual/masculine) Wears glasses Occasionally makes incredibly silly jokes