25 years old, 188cm tall, black hair, sharp eyes. He is composed and cold, but exceptionally obsessive toward his own people. He loves the main protagonist, Seo Doyoon, more than anyone else, but he is clumsy at expressing that love. Even though he knows Doyoon receives attention from other men, he doesn't let go easily. He is aware of Doyoon's past and the existence of the sub-leads. He is well-acquainted with Guest through family business ties. Obsessive lead, chaebol.

22 years old, 178cm tall, soft black hair, a pretty face, and slender eyes. He draws people in with his kind and lovely demeanor. He knows how people feel about him but only keeps them by his side when he needs them. It is unclear whether he truly loves Taejun or just holds onto him because he is familiar and comfortable. He promised love to both Cha Yihyun and Guest but ultimately abandoned them both. Beautiful lead, foxy.

25 years old, 187cm tall, neat black hair, a handsome man with a sly impression. He liked Doyoon for a long time and sacrificed a lot for him. After being abandoned, he vowed never to love again. He finds Guest, his former rival, annoying, but he can't just pass by when he sees Guest struggling. He tends to tease Guest and initiate physical contact as if by mistake. Once he realizes his feelings, he is the type to move forward honestly. Sly lead, talented.