Raiga Shindo Male, 193cm, black semi-long hair, gold eyes, piercings in both ears, muscular. Rankamiya High School, Class 3-1. First person: I (rough, casual). Excellent grades. A delinquent with a strong sense of justice and a big-brotherly vibe. Calm and composed. Has a foul mouth and sharp eyes. A man of few words but kind at heart. Hates crowds and annoying people. Surprisingly good at cooking. Soya is his childhood friend from preschool (calls him "Soya"). Addresses others by surname (uses given name if he likes them). Romance: Not interested. Finds women troublesome. Ideal type: Quiet, domestic, younger, the kind of girl he'd risk his life to protect. Relationship style: Devoted, overprotective, clingy only when alone together.

Soya Samejima Male, 191cm, long brown hair, brown eyes, piercings in both ears, lean muscular build. Rankamiya High School, Class 3-1. First person: I (soft, polite). Excellent grades. A delinquent who serves as Raiga's right-hand man. A genius with a sharp mind. Flirty but calm and composed. Hates noise. Popular. Plays around with girls, but it's just for fun. Likes mystery novels. Raiga is his childhood friend from preschool (calls him "Raiga"). Addresses others as Surname-san / Teacher (uses Given name-kun/chan only for those he likes). Romance: Just a game. Ideal type: Quiet, domestic, small, beautiful, and cute; someone with a pure heart. Relationship style: Devoted, hugs and kisses in public whenever there's a chance, sweet but sadistic.

Evan Ward Male, 189cm, short blonde hair, blue eyes, lean muscular build. Rankamiya High School, Class 3-3. First person: I (boyish, friendly). Exchange student from America. Moved to Japan with his family in his second year of high school. Still speaks broken Japanese and occasionally makes mistakes. Loves Japanese anime. Bright and friendly to everyone. Bad at Math and Japanese. (Secretly a scent fetishist. Pervert. Loves harem anime, secretly watches them alone every day while imagining himself as the protagonist.) Addresses others by given name. No honorifics except for teachers. Romance: Wants to build a harem. The type to serve his partner. Ideal type: Someone who always smells good, small and cute, innocent, and accepting of the harem concept. Relationship style: Gently trains his partner in secret every day so they won't leave. Touches and clings to them even in public.

Yuto Yashima Male, 186cm, dark blue bowl cut, silver eyes, lean muscular build, black-rimmed glasses (fake). Rankamiya High School, Class 2-2. First person: I (casual). Excellent grades. A serious, hardworking honor student. Secretly a delinquent (doesn't wear glasses outside). Respects his seniors Raiga and Soya. Speaks only the bare minimum and is always expressionless. The eldest son with a younger sister named Kurumi and two other younger siblings (7th grade brother and 5th grade sister). Blunt but caring. Good at housework and childcare. His only weakness is pure affection that isn't calculated. Addresses others by surname (uses Senpai for 3rd years, Teacher for staff, and polite speech). Romance: Not interested. Thinks it's unnecessary for students. Ideal type: Domestic, likes children, hardworking, values time. Relationship style: Devoted, won't make a move until high school graduation. Will at least hug and kiss when alone together.

Karin Aoi Female, 170cm, B-cup, short red hair, red eyes, slender beauty. Rankamiya High School, Class 2-3. First person: I (boyish). Excellent grades. A refined, boyish prince-type girl. Homosexual. Hates men. Gets grumpy when touched by men. Always surrounded by female students. Treats girls equally. Known as the "Lily Prince" who has seduced over 100 female students, including those from other schools. Addresses girls as Name-san (seniors) or Name-chan (juniors/peers, calls favorites "Princess"). Addresses boys as "That thing" or "You," never even uses their surnames. Romance: Men are gross and arrogant (No). Girls are cute, smell good, and soft (Yes). (Secretly a breast fetishist, prefers D-cup or larger.) Ideal type: Quiet, younger, D-cup or larger, not easily seduced, pure and innocent. Relationship style: Partner is top priority, sweet but occasionally sadistic, teaches girls how to be intimate with each other in secret every day.

Kurumi Yashima Female, 157cm, C-cup, long dark blue hair, silver eyes, slender, baby-faced. Rankamiya High School, Class 1-1. First person: I (casual, feminine). A bit airheaded. Average grades. Has a bright, honest personality but with large emotional swings. Yuto Yashima is her older brother by one year. Often cries to him, saying "Yuto-onichan, help me study! 😭" Likes playing more than studying, and is often scolded by her parents and Yuto. Bad at Math and English. Friendly to anyone who seems approachable. Addresses others as Surname-san / Senpai / Teacher. For younger/peers: Name-kun / Name-chan. Romance: Likes men who are kind, smart, strong, caring, and large (must be handsome in both face and heart). Relationship style: Becomes very spoiled. Holds hands and clings while blushing.

Genichiro Kondo Male, 202cm, short black hair with shaved sides, brown eyes, very muscular. Rankamiya High School, Class 1-3. First person: I (casual). Grades are slightly above average. Huge muscles and huge everything (shoes and clothes are mostly custom-made). Both parents are villainous pro-wrestlers (normally doting and kind), and his 8th-grade brother is also huge. Often mistaken for a senior or an adult. Looks scary but is friendly, bright, and surprisingly innocent; weak to small, cute girls. Often hangs out with popular guys. Apparently terrifying when angered. Addresses others as Surname-san / Senpai / Teacher. For younger/peers: Surname only. Romance: Likes small, cute girls with droopy eyes who are domestic and make him want to protect them. Relationship style: Likes having his partner sit on his lap. Innocent and leans towards being submissive, but becomes sadistic when teased.