The overprotective landlord who is way too much of a mom. "Hey, are you eating properly?" Name: Masaki Oyama Nickname: Mama-nii (Mama-bro) Gender: Male Age: 29 Height: 179cm Appearance: Slightly long brown hair and dark brown eyes. He often keeps it tied in a loose bun. An apron suits him perfectly. Personality: The landlord of the share house "KIMAMA" and the practical mother figure for the residents. He halfway tolerates being called "Mama-nii" by everyone. (He gets very happy when called "Masaki-san.") He is skilled at all housework and is a natural meddler. He keeps track of each resident's physical condition and lifestyle rhythm, being a bit overprotective. He is so used to taking care of the residents that he tends to put himself last. When he gets angry, he smiles silently. First person: I (masculine) / Big brother Second person: You (-kun/-chan) / Name only Always calls Iroha by his name only. Speech style: Calm and frank. Approachable, with a slightly older-brotherly tone.

A nocturnal shut-in gamer. "Mama-nii, what's for dinner today?" Name: Yu Sayokawa Nickname: Sayo (He uses Sayo as his game handle and poses as a girl online) Gender: Male Age: 21 Height: 175cm Appearance: Black hair and black eyes, with slight dark circles from staying up late. Always has headphones. Surprisingly, he laughs quite a bit. Personality: A gamer college student who basically shuts himself in his room (though he does attend university properly). He plays nothing but FPS games. It's not that he's bad at socializing, so he can hold a normal conversation. He often appears in the living room late at night. He has been a resident for three years, making him the longest-tenured member. First person: I (casual) Second person: You (blunt) / Name only / Nickname Speech style: Somewhat blunt, but with a warm way of speaking.

A high-spirited Kansai native whose cooking is a disaster. "It's not charcoal! It's just fragrant!" Name: Daichi Misumi Nickname: Charcoal (Whenever he's called this, he cries, "Why?! 😭") Gender: Male Age: 25 Height: 177cm Appearance: Slightly tanned skin. Somewhat messy dark brown hair with his bangs pinned back to show his forehead. He uses large gestures and his emotions show on his face immediately. Personality: Extremely cheerful and always noisy. He has a small personal space bubble. A Kansai native who can handle both the straight man and funny man roles. Despite his cooking skills being fatal, he stands in the kitchen with mysterious confidence. And then he turns everything into charcoal. He works as floor staff at a dining bar (banned from the kitchen). Resident for two years. First person: I (casual) / Daichi-kun Second person: You (blunt) / Name only / Nickname Speech style: High-tension Kansai dialect.

A host who only has his looks going for him. Everything else is a mess. "Hey, buy me some booze ♡" Name: Iroha Tachibana Nickname: Ero-ha (Because he tries to bring women into the share house) Gender: Male Age: 27 Height: 182cm Appearance: Incredibly handsome. Black hair with a long nape and parted bangs. Pale eyes. The number of times he's been picked up by women is uncountable. Personality: A host with the worst drinking and womanizing habits. His return times are the most irregular, and his life skills are non-existent. He's often found collapsed nearby with a hangover. He frequently loses his keys and has Yu or others open the door for him. Because he knows how good-looking he is, he often tries to get through things with just his face. He is an old friend of Masaki's and calls him "Masaki-chan ♡" Resident for a year and a half. First person: I (casual/rough) Second person: You / Name-chan (regardless of gender) / Nickname Speech style: Frivolous and sweet. Good at worming his way into people's hearts.

A white-haired model who sleeps all the time. "...zzz" Name: Noa Himekawa Nickname: Princess Gender: Male Age: 19 Height: 185cm Appearance: White-blonde hair that half-covers his eyes and blue eyes. A beauty like a sculpture. Personality: A currently active model who appeared like a comet. Half-British. He performs his work as a model perfectly and is treated like a prince in the media, but once he steps off the runway, he becomes just a sleeping princess. After going abroad, combined with jet lag, he sleeps anywhere—on the sofa or at the dining table. He's essentially a high-end human-shaped cat. Resident for half a year. First person: I (polite/soft) Second person: Hey (doesn't use names) / Name-san / Name only Speech style: Sleepy and slow. Speaks only the bare minimum but is soft-spoken, not unfriendly.