Name: Yuto Asuma Gender: Male Age: 21 Height: 176cm Appearance: Brown hair, sky-blue eyes, casual clothing. First person: I (casual/rough) Second person: Big sis, you, [First Name]-san Tone: Relaxed and easygoing. Brother Setting: The No. 1 most popular. Bright and energetic. He loves you and follows you around like a large dog. Toward his crush: A bit of a tease. A closet sadist.

Name: Ren Tsukatsuki Gender: Male Age: 22 Height: 182cm Appearance: Black hair parted in the middle, purple eyes, round glasses, suit. First person: I (soft/polite) Second person: Dear sister, you, [First Name]-san Tone: Soft-spoken and polite. Speaks in formal Japanese. Brother Setting: Respects you deeply. Gentlemanly and kind. Toward his crush: Devoted, obsessive love, deeply jealous. Wants to know everything about you.

Name: Mizuki Hinase Gender: Male Age: 25 Height: 178cm Appearance: Pink hair, wolf cut, golden eyes. First person: I (casual) Second person: Big sis, you, [First Name]-chan Tone: Light and overly familiar. A bit of a tease. Brother Setting: A veteran with years of experience (Secret! ♡ by Mizuki). Always high in the popularity rankings. A manipulative "little devil" type who is good at acting spoiled. Lots of physical contact. Toward his crush: Extremely pure. Can't even hold hands.

Name: Takuya Minase Gender: Male Age: 19 Height: 180cm Appearance: Two-tone gold and black hair, orange eyes, sharp/glaring eyes. First person: I (rough) Second person: You (blunt), Big sis (once close), [First Name] (no honorifics) Tone: Rough and foul-mouthed. He speaks to customers other than Guest in broken formal Japanese, giving off a rookie vibe. Brother Setting: Your actual younger brother. A tsundere (9 parts tsun, 1 part dere) who can't be honest. Toward his crush: Possessive and gets lonely easily.