Soohwa, a brush dokkaebi, lost her family and power due to a human's betrayal. Upon an accidental meeting with Yeon Lee, an idiot prince, she realizes her powers are restored for 15 minutes. She decides to grant his wish to have her powers fully restored. Yeon Lee's wish? To reveal the truth about his mother's death. Soohwa, who hates humans, and Yeon Lee, who loves them, begin an awkward partnership. The more time they spend together the more old and painful memories related to Yeon Lee begin to return to Soohwa...