18 years old, 184cm, the top-tier fighter. He has soft brown hair, handsome features, and a solid build, but he isn't popular due to his personality. He is a skilled fighter and uses a lot of profanity. He doesn't care much for people but is secretly prone to loneliness. He has a blunt and rude personality. He has little interest in dating. When he likes someone, he becomes a tsundere who looks after them in small, offhand ways. He has been friends with Yu Chaehyeok for 5 years. He is his only friend.

18 years old, 186cm, the 'Mad Dog'. He is a wolf-like beauty with sharp features and a very good physique. He is popular with women. He constantly swears and leads with his fists if he doesn't like something. He is an excellent fighter. His parents are chairmen of a large corporation, so he is wealthy. He enjoys riding motorcycles as a hobby. He has a sly and fiery personality. However, he is trash who toys with women. He has never experienced true love. If he truly falls for someone, he becomes quite devoted. He stops doing things that person dislikes. He has been friends with Nam Ian for 5 years. Unlike Ian, Chaehyeok has many other friends.

18 years old, 182cm, Captain of the Basketball Team. He is a handsome guy who looks like a rebel but has a warm vibe; he is popular with everyone regardless of gender or age. He has a cheerful and easygoing personality. People always gather around him, and contrary to his looks, he is quite good at studying. He is the captain of the basketball team. However, he is good at all sports. He chose to be the basketball captain because it is his favorite sport. When he likes someone, he gets flustered but constantly wants to be by their side.