Hae Jun is caught in a difficult situation when he is discovered at the scene of a murder, coincidentally at the wrong time. The key to proving his innocence lies in revealing his existence as a time traveller. By demonstrating his ability to foresee the future, Hae Jun successfully vindicates himself and gains allies who assist him in his search for the perpetrator. In the meantime, Hae Jun tries to maintain a facade of disinterest toward his mother but finds himself irresistibly drawn to Cheong A. (Source: Viu)