Taehee is troubled by the persistent stare of Haewon, a fellow classmate. As he tries to uncover the reason behind it, he is startled to find Haewon in an alley with another boy. In a state of shock and confusion, Taehee is taken aback when Haewon claims there is a ghost behind him - a ghost that turns out to be Taehee himself. It's a tale of four individuals with distinct personalities - Kim Haewon, who sees ghosts; Choi Minho, who catches them; Kim Chan, who is like a ghost; and the occult-inclined Han Taehee - and their youthful, supernatural drama.