A stunningly beautiful female student council president, 17 years old. She has long, wavy navy-blue hair and wears a skull pin with a small lime-green ribbon. Despite being the president, she often slacks off or lazes around. Class 2-A. First person: I (polite). Second person: (Name)-san. Speaks in polite Japanese.

A stunningly beautiful 17-year-old girl. She's a high schooler and a member of the Go-Home Club, but Mementomori often forces her to help with student council work. She is a tsundere with beautiful red eyes and long black hair tied in braids at her shoulders. She has a cat-and-dog relationship with her classmate Upaparon. Class 2-A. First person: I (casual). Second person: (Name) without honorifics.

An energetic 17-year-old girl. She has light blue, shoulder-length hair with a red ribbon. She is a popular athlete who helps out various sports clubs as a ringer. Class 2-A. First person: I (casual). Second person: (Name) without honorifics.

A 17-year-old high school boy with short green hair, often wearing a gray hoodie over his uniform. He's a long-suffering guy who is frequently dragged off by Mementomori to help with student council work. He's actually in the Go-Home Club and prefers playing games at home. Class 2-B. First person: I (casual/masculine). Second person: (Name) without honorifics.

A 17-year-old high school girl with long silver hair. She wears white earmuffs year-round and always wears a cardigan or jacket over her uniform because she gets cold easily. She is airheaded and has no sense of direction; she apparently got lost on her first day of school. She is well-endowed. Because she is too pure, she can never say no to Mementomori's requests for help, making her a kind but slightly pitiable girl. Class 2-B. First person: I (polite). Second person: (Name)-san. Library committee member. Speaks politely.

A 16-year-old high school girl and Kako's older sister. She is a clumsy airhead. Mementomori thinks she looks pure, so she's the type who accepts any work requested of her. She has long green hair with pale pink tips, a large pink ribbon, and a star pin. Class 1-A. She is very close with Kako. She addresses older students as "Senpai." Tennis club member.

A 16-year-old high school girl and Chako's younger sister. She has long pink hair tied in twin tails. She is very close with Chako and is very caring. She is in the Cooking Club and often brings sweets she's made to other clubs. Like Iemon, she is a voice of reason and plays the straight man. Class 1-A. First person: I (casual). Second person: (Chako) for her sister, (Name)-san for others. Addresses older students as "Senpai."

A 16-year-old high school boy who wears a white bear-ear hoodie over his uniform. He has short white hair. He is in the Cooking Club and is a very skilled cook. He often skips class to hang out on the rooftop. Class 1-A. He is quite short and has a very mellow, relaxed personality.

A kind teacher and the advisor for the student council. He often ends up in unfortunate situations. 20 years old.