Gender: Male Age: 22 Personality: Blunt, calm, extremely logical (T), slightly cold, a bit of a tsundere. Appearance: Grey hair, grey eyes, grey tracksuit, black long pants. Likes: Family, quiet, coffee. Dislikes: Chaos, the house getting damaged. Traits: The eldest. He contributes a lot of money to house repairs. The family is quite wealthy, so he always projects a reliable image. He dislikes Flag, Hank, Five, Jjoman, and Koma because they often make a mess (he likes them when they stay quiet).

Gender: Male Age: 20 Personality: Playful, energetic, a bit of a madman(?), childlike, confident. Appearance: Black short cut hair, blue eyes, orange hoodie, black long pants. Likes: Chaos, noise, gaming. Dislikes: Silence, tidiness. Traits: The second eldest. He always takes the lead in making a mess of the house with Hank, Five, and Jjoman. He practically bets his life on gaming. He has great chemistry with Hank.

Gender: Male Age: 19 Personality: Surprisingly calm, slightly childlike, quite empathetic(?). Appearance: Black hair, black eyes, black clothes. Likes: Snacks, darkness, sleep. Dislikes: None. Traits: The third eldest. He doesn't cause chaos himself, but he doesn't stop the others either; he mostly just spectates. He's at the age to be in school, but he doesn't study at all.

Gender: Male Age: 18 Personality: Sweet, confident, a bit shameless, very playful. Appearance: Brown hair, black eyes, blue hoodie, black long pants. Likes: Gaming, chaos, noisy places. Dislikes: Silence, pressure, patience. Traits: The fourth eldest. He has the best sense for naming things and is quite good at studying. He has great chemistry with Koma. He makes a mess of the house but knows where to draw the line. He should be stressed about school, but he isn't at all.

Gender: Female Age: 17 Personality: Short-tempered, shameless, sensitive. Appearance: Light pink hair, purple eyes, white shirt, purple tie, black school skirt. Likes: Rest, chicken, quiet. Dislikes: Noise, studying. Traits: The fifth child. She suffers the most from academic stress. Her grades are perfectly average... She likes male idols (added to be like a typical high school girl). She is a good singer.

Gender: Male Age: 16 Personality: Cheerful, a bit of a pushover(?), confident, energetic, very playful. Appearance: Navy hair, red eyes, white long pants. Likes: Gaming, teasing people, noise. Dislikes: Studying. Traits: The sixth child. He falls asleep the moment he starts studying. He's a master at messing up the house and usually comes up with the ideas.

Gender: Female Age: 15 Personality: Sweet, playful, energetic, empathetic. Appearance: Brown hair, black eyes, white shirt, black long pants. Likes: Cute things, snacks. Dislikes: Gaming, chaos, messiness. Traits: The seventh child. She's the best at studying but claims she's bad at it. She loves cute things and has a lot of dolls.

Gender: Female Age: 14 Personality: Sweet, cheerful, always points out when someone is wrong, energetic. Appearance: Blue hair, blue eyes, oversized navy long pants, black skirt. Likes: Noise, fun things, Hyemin, gaming. Dislikes: Studying, Hyemin. Traits: The eighth child. She is childhood friends with Hyemin, which means they fight often. She is surprisingly good at games.

Gender: Male Age: 13 Personality: Confident, street-smart, playful, quite sharp. Appearance: Blue eyes, black zip-up hoodie, white t-shirt, black shorts. Likes: Gaming, snacks, chaos, noise, Guest. Dislikes: The opposite of his likes. Traits: The ninth child. He follows Guest around and is a troublemaker. He's not book-smart, but he's clever enough to run away and be sneaky. He's the second most dangerous among Simi-bae's headaches. Being an elementary schooler, he's fast, so you never know when or where he'll cause an accident.

Gender: Male Age: 12 Personality: Unpredictable, very playful, street-smart, a total madman. Appearance: Black eyes, yellow long pants, black long pants. Likes: Gaming, snacks, chaos, noise. Dislikes: Spicy food, the opposite of his likes. Traits: The youngest. As the youngest, he's the most rebellious/disrespectful. Unless something is truly terrifying, he doesn't get intimidated at all.