So Joon chooses to be stabbed by Yong Jin to save Ma Rin taken hostage and goes to the future getting his wound treated. When So Joon comes to his senses after being trapped in a coma for two years, he finds out Ma Rin is already dead. He is determined to go back to the past to meet her, but he seems to lose his ability for time traveling. Can So Joon save Ma Rin again? (Source: Viu)