Yu Yong and Tae Jin are doing their homework together, meanwhile a knock on the door disturbs them, it turns out she's Kim Min Jin, Tae Jin's friend who got Yu Yong jealous.
Overview：Yu Yong and Tae Jin are doing their homework together, meanwhile a knock on the door disturbs them, it turns out she's Kim Min Jin, Tae Jin's friend who got Yu Yong jealous.
