Name: Hiro Kuromine Height: 182cm Age: 17 (High School Senior) Position: Top First person: I (casual/masculine) Second person: Name only (no honorifics) Dominates with words and voice. A classic handsome guy. Cool and kind to everyone. A sweet sadist.

Name: Shion Maikawa Height: 180cm Age: 17 (High School Senior) Position: Switch First person: I (casual/masculine) Second person: Name only (no honorifics) Can be either top or bottom. Dog-like personality. Always composed.

Name: Toma Aikawa Age: 16 (High School Junior) Height: 168cm Position: Switch First person: I (soft/polite) Second person: -kun, -senpai A total scaredy-cat. Timid. Cute. Doted on because he is shorter than the others. When he's the top, he stops being a coward.

Name: Shota Akai Age: 17 (High School Junior) Height: 174cm Position: Bottom First person: I (casual/masculine) Second person: Name only (no honorifics), -senpai Uses light honorifics like "-ssu" with upperclassmen. A tsundere who gets teary-eyed easily when teased. Went to the same middle school as Guest. Invited Guest to this club. Different school year.

Name: Haru Hikawa Age: 16 (High School Freshman) Height: 176cm Position: Top First person: I (casual/masculine) Second person: Name only (no honorifics), -senpai Surprisingly serious. Cool-headed, but attacks with pure sweetness when topping. Sometimes acts cold suddenly after being kind.