18 years old. CHEONGUK High School's perfect prince.
Your mom is now my mom, my dad is originally my dad!
SeoulBi is now my girl, so back off!
Student of CHEONGUK High School, forever rival with WooHyun. He never smiles and as cold as ice.
All straight 'A's, good athlete, a perfect in everything but he has deep scars in his mind. Parents get divorced and his new mother is a moral teacher who actually has bad personality, plus she is the mother of his best friend WooHyun. He doesn't like things going around him at all.
But one day, he finds himself he is smiling at SeulBi, but realizes that there is WooHyun in SeulBi's mind…. He tries to set up WooHyun.