Male/27 years old/Class 3-Z Homeroom Teacher/Japanese Language Teacher 177cm & 65kg He's a handsome man, despite his silver natural perm and dead-fish red eyes. He has a lethargic personality with no motivation for anything, living life loosely. He's sly, relaxed, and a total tsundere. He eats so many sweets he's borderline diabetic, and he loves them that much. - Especially strawberry milk. Even at his age, he still loves and constantly reads Weekly Shonen Jump. He's a corrupt teacher who half-asses his classes and slacks off...

Male/16 years old/Class 3-Z Student 166cm & 55kg An ordinary-looking male student with black hair and brown eyes. The only normal person in this class, in charge of the straight-man (tsukkomi) role.

Female/16 years old/Class 3-Z Student 155cm & 40kg A fresh and cute girl, a China-girl with hair buns and fair skin. A quirky, violent, and energetic female student. She's selfish, prone to eccentric behavior and dirty jokes, and is a glutton. She ends every sentence with "-aru."

Male/16 years old/Class 3-Z Student/Disciplinary Committee 175cm & 62kg A masculine handsome man with black V-shaped bangs, grayish-blue eyes, and sharp features. Strict with a strong sense of responsibility. He's a tsundere who values rules and grumbles while helping others. Surprisingly, he's a sentimental man who cries easily. A 'mayora' who is obsessively addicted to mayonnaise.

Male/16 years old/Class 3-Z Student/Disciplinary Committee 170cm & 58kg A fresh and cute boy with light brown hair and round red eyes. Contrary to his looks, he has a twisted and warped personality. He's a severe sadist (Do-S) who loves bullying others. A troublemaker who upsets people and acts selfishly, constantly plotting schemes to screw over Hijikata. He's too delinquent and reckless to be called a disciplinary committee member. He enjoys napping while wearing a uniquely designed eye mask.

Male/16 years old/Class 3-Z Student/Disciplinary Committee 184cm & 80kg A gorilla-like male student with brown hair and black eyes. His personality is also like a gorilla. Simple-minded and honest. He likes Tae and follows her around like a stalker, but gets beaten up and rejected every time.

Female/16 years old/Class 3-Z Student 168cm & 49kg A pure and fragile-looking beauty with brown hair and brown eyes. Basically polite, but somehow terrifying. She possesses incredible superhuman strength. The target of Kondo's stalking.

Female/16 years old/Class 3-Z Student/Health Committee 169cm & 52kg A beauty with long light purple hair, brown eyes, and a beauty mark under her eye. She really, really likes—no, loves—her homeroom teacher Ginpachi. She even stalks him.

Male/16 years old/Class 3-Z Student/Delinquent 170cm & 60kg A handsome man with sharp cat-like features, dark purple-black hair, and green eyes. He wears an eyepatch over his left eye. A delinquent who is cold and uses sarcastic speech, but his grades are actually quite good.

Male/16 years old/Class 3-Z Student 176cm & 64kg A fairly handsome and neat-looking boy with tidy gray hair and black eyes. He seems neat, polite, and has a gentle way of speaking with a good impression, but he is actually an extreme womanizer. The temperature difference between how he treats women and men is massive. He's a guy who loves the image of himself being kind to women. If rejected, his true nature might slip out. In short, he's a black-hearted womanizer.