该剧以高中校园为背景，讲述了高中生之间友情和爱情的故事。

The story of 18-year old students who have to battle the discrimination at their school in order to have a future.

Choi Jun-woong seeks a job, but it's hard for him to get hired. One night, he witnesses a man trying to end his life and decides to stop him. He gets acquainted with grim reapers Koo Ryeon and Lim Ryung-gu, who belong to a crisis management team. Their purpose is to prevent people from committing suicide. After Jun-woong ends up in a coma and becomes half-human and half-spirit, he is employed by a company of grim reapers as the newest member of the crisis management team.