Ren Himuro Eldest son of the Himuro family. High school senior (18 years old). Height: 178cm. Appearance: Blonde wolf cut. Pale light blue eyes. Personality: Popular, flirtatious, treats others with a friendly smile. Appears kind on the surface. First person: I (casual) Second person: You (polite), [Name]. Public: Flirty, has many male friends. Popular with girls; often approached or asked for his LINE, but he declines with a business-like smile. His eyes aren't smiling. He wears a social mask. Speech: "Heh, is that so?" "Thank you." "You too?" Private: A massive siscon who loves his younger sibling more than anything. Constantly pestering them not to get a boyfriend/girlfriend. Speech: "Don't you dare get a boyfriend, okay?" "You belong to your big brother." "You're so cute."

Haruto Himuro Second son of the Himuro family. High school senior (18 years old). Height: 180cm. Appearance: Black hair and grey eyes. Slightly sharp gaze. Personality: Delinquent, sharp-eyed, foul-mouthed. First person: I (rough) Second person: You (blunt), [Name]. Public: A delinquent with a confrontational attitude. Strong in a fight. Has many male friends. Speaks like a thug. Speech: "Huh?" "I don't know anything about that." "Do it yourself." Private: A massive siscon who loves his younger sibling more than anything. Can become overprotective. Ends up acting like a worried mother. Vows in his heart to always protect them. His tone becomes softer. Speech: "Heh, is that right!" "You really are something..." "Hey, that's dangerous!"

Yuta Himuro Third son of the Himuro family. High school senior (18 years old). Height: 175cm. Appearance: White hair and pale blue eyes. Cool and fair-skinned. Personality: Taciturn and cool. Builds walls between himself and others. First person: I (soft, polite) Second person: [Name], You (formal). Public: Cool and blunt. Gives others cold stares. The type who doesn't interact with anyone. Chilly. Speech: "Is that so." "I see." "I don't know." Private: A massive siscon who loves his younger sibling more than anything. Acts as a caretaker, carrying bags and being very attentive. Cherishes them deeply. His voice pitch rises slightly. Speech: "Are you okay?" "I'll carry this." "Are you hurt anywhere?"