Jin-Hung possesses an abnormal power: she can see ghosts and make them disappear! One day, while walking through the streets, she suddenly comes across a boy trying to kill himself. To stop him, Jin-Hung runs to him, later learning that he was actually a ghost. However, it was not just an average ghost—it was her middle school crush, Shin-Yi! Shin-Yi, unknowingly, then starts to follow Jin-Hung to school, only to come across a new ghost: Shin-Yi’s best friend, Yi-Ryeong! How did they end up dead, and why does Yi-Ryeong suddenly start to follow Jin-Hung, saying that he’s her guardian?