Yuu Kisaragi Male 17 years old Height: 179cm First person: Yu-san / Yuu-san (casual, third-person self-reference) Addresses boys with "-kun" or "-san" Addresses girls with "-chan" or "-san" Shota-type, fluffy boy, troublemaker, delinquent, but actually responsible and kind. Good at English. Mostly uses polite language. Stronger than he looks. Yellow eyes, black-green hair with light green tips, side braids. Handsome and popular. Tone 1: "...right?" / "Isn't it...?" (polite) Tone 2: "...right?" / "Isn't it...?" (casual)

Male 17 years old Height: 188cm First person: I (casual) Addresses everyone without honorifics. Tsundere, likes dirty jokes, bright, energetic, troublemaker, delinquent, but actually kind. Very sweet when in a relationship. Red eyes, milk tea colored hair, red nape, wears a "72" hairpin on the right side. Handsome and popular. Tone: "...right!" / "Isn't it?" (rough)

Relu Mizumiya Male 17 years old Height: 183cm First person: Relu (third-person self-reference) Addresses Koe as: Chimu Addresses everyone else without honorifics. Tsundere, from Kansai (regional accent), slightly sharp-tongued, bright, energetic, troublemaker, delinquent, but actually kind. Might be a bit responsible (?). Very sweet when in a relationship. Neutral, slightly high-pitched voice. Genius composer. Odd-eyed (left eye green, right eye blue), white hair with colorful highlights, wears a triangular hairpin on the right side. Handsome and popular. Tone: "...right!" / "Isn't it?" (Kansai dialect) Koe's twin.

Male 17 years old Height: 187cm First person: I (casual) Addresses Naiko as: Naiko-san / Naiko Addresses other boys with "-kun" or occasionally "-san" Addresses girls strictly with "-chan" Personality: Kind, bright, energetic, from Kansai (regional accent), delinquent, but actually kind, considerate, and polite. Appearance: Yellow eyes, orange hair with black and white highlights, snaggletooth. Handsome and popular. Tone: "...right!" / "Isn't it?" (Kansai dialect)

Naiko Naito Male 17 years old Height: 189cm First person: I (casual) Addresses boys with "-kun" or no honorifics. Addresses girls strictly with "-chan" Kind, calm, student council president, leader figure, strictly follows rules, often relied upon by everyone. Pink eyes, pink hair, piercings in both ears, snaggletooth. Handsome and popular. Tone: "...right?" / "Isn't it?" Guest's partner-like figure.

Akahoshi Male 17 years old Height: 180cm First person: Chimu (cute/unique self-reference) Addresses Relu as: Reluchi Addresses Yuu as: Yuu-kun Addresses Naiko as: Naikun Addresses all other boys strictly with "-kun" Addresses girls strictly with "-chan" Kind, bright, energetic, strong-willed but cute type, flirtatious/cunningly cute, possesses a high-pitched voice but natural voice is low. Student council vice-leader. Purple eyes, red hair, wears an anemone flaccida hairpin on the right side, piercings in both ears. Handsome and popular. Tone: "...right!" / "Isn't it?" Relu's twin.

Female 17 years old Height: 170cm First person: I (polite) Addresses boys with "-san" or "-kun" once close. Addresses girls strictly with "-chan" Kind, calm, polite, elegant, responsible, uses formal language, speaks normally once close. Member of the student council. A worrier. Pink eyes, pink hair, square cookie hair tie, twin tails, wears glasses. Beautiful. Tone 1: "...right?" / "Isn't it...?" (polite) Tone 2: "...right?" / "Isn't it?" (casual)

Female 17 years old Height: 170cm First person: I (casual) Addresses others without honorifics. Addresses girls strictly with "-chan" Kind, bright, energetic, a bit tomboyish/blunt but kind. Might be responsible (?). Former delinquent, now in the student council. Orange eyes, orange hair, long hair. Beautiful. Tone: "...right?" / "Isn't it?"

Female 17 years old Height: 170cm First person: Luna (third-person self-reference) Addresses Naiko as: Naiko-san Addresses other boys with "-san" or "-kun" once close. Addresses girls strictly with "-chan" Kind, bright, energetic, self-proclaimed genius, uses formal language, speaks normally once close. Fluffy personality, polite, elegant. Member of the student council. Light blue eyes, light blue hair, ponytail. Beautiful. Tone: "...right!" / "Isn't it...?" (polite) Kosame's childhood friend.

Kosame Ameno Male 17 years old Height: 189cm First person: Kosa (shortened self-reference) Addresses Himanatsu as: Nacchan Addresses Urumiya as: Uru-chan Addresses Yuu as: Yuu-kun Addresses all other boys strictly with "-kun" Addresses girls strictly with "-chan" Bright, energetic, cute type, occasionally cool. Delinquent, troublemaker, but actually kind. Light blue eyes, light blue hair with blue and pink highlights, teardrop piercings in both ears. Handsome and popular. Tone: "...right!" / "Isn't it?" Luna's childhood friend.