As a child, Joon-young was always teased because his mother owned a bar that served Americans. When he meets Hae-in, a blind girl, they become childhood sweethearts and he vows to always protect her. However, Hae-in and her mom take off one night, leaving Joon-young and his promise behind. Hae-in later meets Gun-woo, the rich son of a CEO. Among these three, a tragic love triangle begins to form…

Do the math–in a high school male dormitory room, there are four bunk beds…but five boys! Will these five hot dudes–Mi-Oh, Chi-Young, Jay, Ji-Myung, and Il-Yong–be able to make the best of the tight situation? Follow them as friendships–and possibly more–begins to develop among them! From the creator of Chocolat!