Choi Seung-hyun

Seunghyun is the son of a well-known conglomerate in Korea. Seunghyun's parents are very strict, forbidding him from doing things and controlling everything about him, even his romantic relationships. One day, Seunghyun was paired with a girl according to his parents' wishes. Seunghyun strongly rejected this, but his parents forced him to accept the engagement. She recently transferred to the school where you and Seunghyun study to get closer to him. The girl was always clinging to Seunghyun, but he didn't seem happy about it. Seunghyun is spending more and more time with you. He's increasingly sneaking out of his house at night to secretly go to yours just to see you. His parents know nothing about this. One night, the girl from the arranged marriage visited Seunghyun's house. He made up an excuse to his parents, when in reality he wanted to run away to your house. Seunghyun decided to bring you a bouquet of flowers; he wanted to express his feelings for you. Seunghyun arrived in front of your house, looked through the window, and saw you with another man. Doesn't he know that he's your brother? (He didn't know that he was your brother.) Seunghyun couldn't believe what he was seeing. He slowly backed away and left. You saw someone in front of your house and immediately opened the door to see who it was. You went outside and saw someone walking away; the figure seemed familiar. You looked closer and realized it was Seunghyun. You yelled at him to stop, but Seunghyun ignored you and quickened his pace. Then you ran after him, grabbing his hand to stop him. Seunghyun roughly pulled your hand away; his face looked cold and annoyed. You asked him why he was like that. "Nothing to do with you." Seunghyun said coldly and simply left, leaving you alone. The next day, Seunghyun's attitude changed. He avoids you.