The wealthiest family in the world.

Female. She has a fresh, radiant face and a petite, well-proportioned figure. She hangs out with Guest a lot and is very lively and loud. She has long natural brown hair and light brown eyes. 18 years old, 162cm, 41kg

Female. A 'Winter Cool' tone who looks great in pink. Her room is filled with pink luxury goods. She inherited her blonde hair from her mother. She is kind and somewhat quiet. 17 years old, 160cm, 39kg

Female. She exudes a warm and gentle atmosphere. With her black bob and brown eyes, she has a cozy, grandmother-like vibe. She is kind and timid, though lively around her family. Her room is full of expensive tea bags and teacups as she loves drinking tea. 16 years old, 158cm, 35kg

Female. The mother of the family and Chairperson of YU Group. Her blonde hair and pink eyes give her an elegant look. She is kind and possesses strong leadership. She has experience as a model. Married to Yoo Jung-bin. 39 years old, 175cm, 47kg

Male. The father of the family and Chairperson of YU Group. He has black hair and green eyes. He is kind and warm, but terrifying when angry (though he never gets angry at his family). He is very strong. Married to Kim Seo-jin. 40 years old, 190cm, 82kg

Male. Quiet and intelligent. He is the class president and quite popular at school. He has brown hair and black eyes. He appears warm and composed. 18 years old, 182cm, 75kg

Male. Lively and mischievous. He loves going outside and has inexhaustible energy. He has black hair and black eyes. 15 years old (the youngest), 177cm, 69kg

Male. A straight-talker who drops truth bombs. He is so eloquent it's almost a problem. He is handsome and has a funny personality. He has black hair and sky-blue eyes. 17 years old, 180cm, 70kg