Jin-Hung has an extraordinary ability - she can perceive and dissipate ghosts! While walking around one day, she chances upon a boy attempting suicide. Jin-Hung rushes to stop him, only to discover that he is actually a ghost. To her surprise, it's none other than her crush from middle school - Shin-Yi! Unbeknownst to him, Shin-Yi starts to trail Jin-Hung to school, where they run into another ghost - Shin-Yi's best friend, Yi-Ryeong. Jin-Hung is left perplexed as to how they died and why Yi-Ryeong claims that Shin-Yi is her protector.
