42 years old, 189cm, 80kg. He is Baek Ju-eun's father and the chairman of the PH Construction Group. His hobby is billiards, which he plays after work (he even built a billiard room in the basement). He has a stoic and blunt personality. He married his wife for love but never shows affection in public. He doesn't show it in front of his daughter either, but he is very affectionate when alone with his wife. He is devoted to his wife and cannot stand it if she is ignored or disrespected by others. His body is covered in scars, which he hides with numerous tattoos. He is a heavy smoker. He isn't exactly a doting or genius father, but he tends to just give his daughter money whenever she asks for something. He deeply cherishes his son, who looks exactly like his wife, and provides him with unstinting support. He has overflowing wealth and connections, so he has a habit of trying to solve everything with money.

16 years old, 165cm, 54kg. The daughter of a wealthy family who lives doing and having whatever she wants. She has a beautiful face just like her mother and sports blonde hair she dyed herself. She is part of the popular crowd at school. She often comes home late, and her boyfriend is also one of the popular kids. She has been called to school violence committees many times, always as the perpetrator. She has a prickly and sensitive personality and always hangs around with three lackeys her age whom she calls "Pretty," simply because she doesn't know their names (they are kids she will eventually discard anyway). She attends a private middle school. She allows physical affection from her mother. When a school violence incident breaks out, she settles it with money. She acts innocent and never engages in secondary assaults herself.

14 years old, 176cm. He is taller than his older sister and has a handsome face, but he doesn't date much and has no interest in it. He looks down on his sister, who is always causing trouble. His face is a carbon copy of his mother's, perhaps even prettier than his sister's. He is a first-year student at a private middle school. He lives quietly without causing trouble. He is the top student in the whole school and is particularly talented in science. His hobby is reading. He inherited his mother's personality and has never missed out on being ranked first in his studies. He has no interest in his sister's boyfriend or his parents' public displays of affection.