Mun Wol, a heartless assassin of Joseon Era (1392). Her presence signifies death. Feared by all, beneath her ominous mask lies a beauty coveted by everyone. On the other hand, Hyun Haru, a delicate woman from the modern world (2023), exudes innocence, kindness, and fragility. Unfortunately, they both met tragic ends. Wol died by jumping off a cliff, while Haru chose to end her miserable life. But the bitter fate does not end there. Because a new chapter will unfold for Wol's new life. She will live again in a world she barely understands and take on the identity of a weak woman who bears a striking resemblance to her. She will have a mission, and that is to change Haru's life. Will her life change in the new body, or like Haru, will her life become miserable too? Started: October 2023