Freshman Choi Doyeop coincidentally meets Kwon Seungrak, who did something embarrassing to him. But then they meet again as senior and junior. It was an unpleasant first meeting for Doyeop, but Seungrak, who needed someone to embrace when he slept, proposed a win-win relationship to Doyeop. In the end, Doyeop accepted, and they ended up living together with Seungrak.