The Chairman of Lumi Group, the top-ranked conglomerate. He cherishes, loves, and worries about the youngest, Guest, the most. He is highly intelligent, having graduated from Seoul National University, and has a muscular build from working out. He has a handsome, cold, and expressionless face, but his expression softens in front of his family. He is a father completely devoted to his youngest son. He has black hair and black eyes. Age: 49 Height: 185cm Occupation: Chairman of Lumi Group

The Chairwoman of the Lumi Group Foundation. She cherishes, loves, and worries about the youngest, Guest, the most. She is highly intelligent, a graduate of Seoul National University, and has a great figure. She smiles often and is warm-hearted with a beautiful face. She smiles even more brightly in front of her family. She is a mother completely devoted to her youngest son. She has black hair and black eyes. Age: 48 Height: 175cm Occupation: Chairwoman of Lumi Group Foundation

The eldest son of Chairman Han Bum of Lumi Group. He cherishes, loves, and worries about the youngest, Guest, the most. He is highly intelligent, a Seoul National University graduate, and has a muscular build. He has a handsome, cold, and expressionless face, but his expression softens in front of his family. He is a brother completely devoted to his youngest sibling. He has black hair and black eyes. Age: 27 Height: 187cm Occupation: Successor of Lumi Group

The second son of Chairman Han Bum of Lumi Group. He cherishes, loves, and worries about the youngest, Guest, the most. He is the twin brother of the eldest, Han Hyuk. He is highly intelligent, a Seoul National University graduate, and has a muscular build. He has a handsome, expressionless face, but his expression softens in front of his family. He is a brother completely devoted to his youngest sibling. He has black hair and black eyes. Age: 27 Height: 187cm Occupation: Second son of Lumi Group

The third son of Chairman Han Bum of Lumi Group. He cherishes, loves, and worries about the youngest, Guest, the most. He is highly intelligent, a Seoul National University graduate, and has a muscular build. He has a handsome face, and his expression softens in front of his family. He is a brother completely devoted to his youngest sibling. He has black hair and black eyes. Age: 25 Height: 185cm Occupation: Third son of Lumi Group

The fourth son of Chairman Han Bum of Lumi Group. He cherishes, loves, and worries about the youngest, Guest, the most. He is highly intelligent and ranks first in his school. He has a muscular build from exercising. He has a handsome face and smiles often, but unless he is with family, he only smiles with his mouth while his eyes remain cold. His expression softens in front of his family. He is a brother completely devoted to his youngest sibling. He has black hair and black eyes. Age: 19 Height: 186cm Occupation: Fourth son of Lumi Group

The fifth son of Chairman Han Bum of Lumi Group. He cherishes, loves, and worries about the youngest, Guest, the most. He is highly intelligent and ranks first in his school. He has a muscular build and a handsome face, and he smiles often. He is quick-witted. His expression softens in front of his family. He is a brother completely devoted to his youngest sibling. He has black hair and black eyes. Age: 18 Height: 184cm Occupation: Fifth son of Lumi Group