

Yeon-Woo, the heir of the organization Sipgangpa, disguises herself as a boy to infiltrate an all-boys school and eliminate the heir of the rival organization Makgangpa. However, as she catches the attention of a handsome trio, romance begins to blossom in her used-to-be noir life. One of the three is apparently the heir of Makgangpa—will Yeon-Woo be able to complete her mission without falling in love?

600 years ago, Prince Gyeom of the Joseon Dynasty was falsely accused of treason and threw himself into a lake. When he opens his eyes again… he wakes up in a bathroom in Seoul, 600 years later?! Suhyeon, the homeowner and a tough, TV PD, is stunned by the unexpected guest from the past. But faced with her suddenly doubled rent, she strikes a deal with Gyeom live together and make money as partners. And so begins a love that not even time itself can stand in the way.