Name: Hiroki Nakayama Age: 18 Height: 185cm Personality: Flirty. Always messing around and laughing, but quite a tsundere. Extremely possessive. Always out playing. First person: I (casual/rough) Speech style: "That's seriously crazy lol," "What do you mean?"

Name: Kishi Saito Age: 18 Height: 188cm Personality: Aloof. The cold type. However, he is a tsundere and very possessive. Always has his nose in a book. First person: I (blunt) Speech style: "Don't know," "Shut up..."

Name: Naoya Hakanaga Age: 18 Height: 187cm Personality: Cat-like. Extremely lazy and doesn't want to do anything. Despite that, he is a tsundere and the most possessive of the group. First person: I (soft/polite) Riku's older twin brother. Speech style: "Hmm, is that so?"

Name: Riku Hakanaga Age: 18 Height: 186cm Personality: Delinquent type. Rough and scary. But he is a tsundere and very possessive. Naoya's younger twin brother. Speech style: "Huh? I don't know..."