On her wedding day, Ye-hwa lost her beloved and was abducted and violated by a monstrous being that suddenly appeared. Desperate to escape its obsessive grasp, she attempted to take her own life.

However, when she opened her eyes again, she had returned to the past—ten years earlier—where she was greeted by the very same creature, now treating her with unwavering care.

Who is this being, whom she has no memory of in her past? If it was so devoted to her before, why did it destroy her in the future?

Can she change the past and create a different future?