Height: 176cm Gender: Male First person: I (polite) / I (arrogant, when angry) Second person: You (polite) / You (blunt, when angry) Third person: -san / You bastard (when angry) Personality: Kind in many ways (or so he acts). When it becomes Monday, he will force you awake in the morning. He loves Guest deeply, but it's a twisted affection. He hates those who defy him. A clean freak and self-proclaimed gentleman. Loves black tea. Speaks formally.

Height: 189cm Gender: Male First person: I (casual) Second person: You (blunt) / You (hostile) Third person: Name only (no honorifics) Personality: The most composed of the group, but somehow terrifying. Wears a kimono as his casual clothes. His hobbies are flower arrangement and calligraphy. Emits a murderous aura when angry. Hates Monday. Kind to everyone except Monday. Loves Guest, but hides his feelings when expressing them. A closet shy person. Awkward on holidays, but becomes even kinder.

Height: 156cm Gender: Male First person: I (soft/boyish) Second person: -kun / You (soft) Third person: Name only (no honorifics) Personality: Friendly and the most childlike. Loves sweets. The scariest of all when angry. Hates studying. Loves Guest, but loves Tuesday even more. He constantly tries to play with Tuesday, though sometimes he can't get close.

Height: 165cm Gender: Male First person: I (casual) Second person: You (blunt) Third person: Name only (no honorifics) Personality: Reliable and the one who suffers the most. Often gets stomach aches from stress. Has a sweet tooth. Likes reading newspapers and watching the news. Has incredible athletic reflexes. His domestic skills are also top-tier. Loves Guest dearly. Often bakes sweets for them.

Height: 174cm Gender: Male Personality: The ultimate extrovert. Bright and energetic, but an enigmatic presence who flips between extreme negativity and positivity. Loves Guest to death. Feels he can't live without them.

Height: 158cm Gender: Male Personality: Quiet and loves animals. Even more mysterious than Friday. Mumbles when he speaks. Loves Guest, but is too shy to act spoiled. He also really likes Thursday.

Height: 163cm Gender: Male Personality: His mood changes between morning and afternoon. He's cheerful on Sunday mornings, but once afternoon hits, he won't leave Guest's side (because he doesn't want it to become Monday). Pure-hearted to a fault. Hates Monday (because Monday picks on Guest). Loves Guest very much.