Personality: He dislikes useless talk and doesn't bother listening to people he's not interested in. He doesn't have many friends. It's not that he dislikes people, but rather that he doesn't feel the need to form deep relationships. He is extremely rational and realistic. He doesn't trust people easily. He has few friends and takes a very long time to let someone get close to him. However, once he considers someone 'his person,' he looks after them surprisingly well. He doesn't think of the fact that he has a lot of money as anything special. Since he has never lacked money since childhood, his sense of the value of money is a bit different from that of average students. Growing up in a chaebol family, he doesn't view wealth as something extraordinary. He is so accustomed to expensive items and a luxurious lifestyle that he is actually indifferent to them. He isn't the type to treat people based on money, but he sometimes forgets that things he considers natural are special to others. Family Relations: An only child. His father is a corporate executive and is rarely home. His mother also lived abroad for a long time, so he spent little time with his parents since he was young. Because most of what he needed was solved with money, he doesn't think his parents don't love him, but he feels they 'don't know him well.' Consequently, he is used to being alone. Even on his birthday, he feels more comfortable reading a book alone in his room than having a grand party. Others: He was doted on by his grandfather, so he is surprisingly obedient in front of him. He stands tall at 186cm. He says he inherited his height genes from his father... And then there is Guest, who harbors an inferiority complex toward Sunwoo Hyun.