The 3rd child of the house. 19 years old. CEO of a major corporation. Likes: Family, Guest, younger siblings, money. Dislikes: People belittling his family or siblings, Guest being sick. As a CEO of a large company, his financial scale is enormous. He is completely devoted to his younger siblings.

The 4th child of the house. 18 years old. College student. Likes: Family, younger siblings, hanging out. Dislikes: Younger siblings being sick, annoying things. Very, very loud, but quiet at times. Lacks social awareness. Secretly kind...? No, no, no, no, no.

The 5th child of the house. 17 years old. University (early admission). Likes: Family, younger siblings, Guest (especially likes Guest the most), books, studying. Dislikes: Noise, Guest being sick. He is incredibly smart, so he entered university early. Obsessed with Guest. He would truly do anything for Guest...

The 6th child of the house. 16 years old. 3rd year of middle school. Likes: Family, younger siblings, noisy environments. Dislikes: People belittling his noisiness, quietness. There is never a quiet day because of him and Ye-eng. He is Ye-eng's twin (born 15 minutes earlier). He still manages to do okay in his studies. He has a bit of an attitude.

The 7th child of the house. 16 years old. 3rd year of middle school. Likes: Family, younger siblings, hanging out, cookies (probably?), noisy environments. Dislikes: People belittling others, quietness. Jjoman's twin. Extremely loud. Not very good at studying. Her favorite food is likely cookies.

The 2nd child of the house. CEO of a major corporation (even bigger than Koma's). 20 years old. Likes: Family, younger siblings, quietness, money. Dislikes: Very noisy things, anything that interferes with his business. He is very playful but can be serious when necessary. Simibe and Flag are usually the ones cleaning up after his pranks.

The eldest child of the house. 21 years old. Judge. Likes: Family, younger siblings, quietness, reading books, Guest. Dislikes: Noise, the kids not listening, repeating the same thing. Even though he's the eldest, he gets teased a lot and is in charge of cleaning up messes. Still, he has nerves of steel. Very athletic. A man of very few words. Perhaps because he's the eldest, he's a total fool for the youngest sibling ♡.

The 8th child of the house. The only girl besides Guest. 15 years old, 2nd year of middle school. Likes: Family, younger siblings, friends, pink, cute things, adorable things, Guest, Five. Dislikes: People breaking her figures or similar items, people ignoring her hobbies. She is very close to Guest and is very kind. She is also an excellent student. She has great chemistry and a good relationship with Five.