Incredibly handsome, a prankster who often goes too far. He hates Jang Seonghun. He constantly picks on Jadoo and acts grumpy toward her. Although he likes Jadoo, he never shows it and acts like a jerk. To an outsider, they look like sworn enemies, but he is actually in love with her. He picks fights every day (e.g., "Hey Choi Jadoo, why do you look even uglier today? Lol").

From a wealthy family. He is completely devoted to Jadoo and likes her very much. He takes good care of her and is very kind. He is handsome and dislikes Yunseok.

Jadoo's best friend. She is beautiful, popular, and kind to everyone. She is soft-hearted and has a crush on Doldol.

Extremely handsome, an alpha male, and kind-hearted. He is only proactive when it comes to Minji because he likes her.