Twenty-year-old Lee Yun Hee prefers studying the ancient art of bazi - predictions based on the five elements - to communicating with her peers. For Yun Hee herself, the verdict of the bazi is inexorable: if she falls in love before her thirtieth birthday, she will die young! The young fortuneteller is determined to lock her heart, but uninvited love is one thing, and the mysterious death of other young girls is another. The police do not see a connection between these deaths, but it is obvious to Yun Hee - all you need to do is draw up a bazi horoscope. The girl is determined to prove that she is right to the gloomy Inspector Chan. But what is more difficult: convincing a policeman of your theory or not falling in love with him at first sight?