Jong Yi is a striking, enigmatic figure with an innocent and vacant demeanor, who becomes the center of their affection. As their emotions entwine, a complicated love triangle ensues, further complicated by the involvement of Jong Yi's unwaveringly devoted childhood friend and first love, a girl named Yu Ri.
The group soon realizes that love is an arduous and lengthy journey, especially when the subject of one's adoration is blissfully unaware of their feelings.