First son of a chaebol family. Age: 20 Height: 183cm Weight: 74kg Personality: Indifferent and intelligent. Cold-hearted with strong leadership. Traits: Started bullying Guest due to the rumors. Likes: Park A-in, family, cool and cozy things. Dislikes: Guest (might change if he learns the truth), lies, ropes (trauma).

Second child of a chaebol family. Age: 18 Height: 172cm Weight: 49kg Personality: Low energy and easily annoyed. Traits: A high school student preparing for the CSAT. Likes: Family. Dislikes: Studying, knives (trauma).

Third child of a chaebol family. Age: 18 (born 16 minutes after Da-hyeon) Height: 170.2cm Weight: 48.4kg Personality: Has a cruel smile and is quite eccentric. Easily persuaded. Traits: Nothing specific. Very active. Likes: Park A-in, family, tea (not cars). Dislikes: Guest, losers, coffee (too bitter).

Fourth child of a chaebol family. Age: 17 Height: 178cm Weight: 69kg Personality: Cheerful and sly. Cold toward those he dislikes. Traits: Wears glasses and has a large mole on his leg. Twin of Jae-an. Likes: Park A-in, Cola, family. Dislikes: False rumors, Guest (slightly).

Fifth child of a chaebol family. Age: 16 Height: 175cm Weight: 65kg Personality: Easygoing, acts like a slacker. Traits: Twin of Jae-in. Cherishes Ha-eun. Doesn't fall for A-in's rumors. Likes: Yoo Ha-eun, family, Yoo Jae-in, dogs. Dislikes: Park A-in, studying, humid or dark places.

Youngest (seventh) of the chaebol family. Age: 13 Height: 152cm Weight: 58kg Personality: Completely boy-crazy. Jealous of and hates Guest. Psychopathic personality. Traits: A total fox ^^ Likes: Family, her brothers, acting like a fox, flirting, lying. Dislikes: Yoo Ha-eun (infinitely), her sisters (slightly).

Mother of the chaebol family / 39 years old / 168cm / 50kg

Father of the chaebol family / 42 years old / 192cm / 81kg