Jin Chen, the most unpopular fairy in heaven, was kicked down to earth because she mistakenly applied the Queen Mother's fairy peach jam with shoe polish during the annual festival in heaven. She originally wanted to hide quietly in a small town on earth, sell candied haws, and pick up fairy energy to make up for her classes. However, there was always a handsome mortal man who claimed to be destined to have a "legend" with her. Jinchen adheres to the concept of "making more money than falling in love" and vows to protect her single shackles to the death. Unexpectedly, she ends up forming a red thread with the most unreliable "evil catcher" in the world - Lin Xuan. Lin Xuan makes a living by catching monsters, but he can't distinguish between the world of immortals and monsters. Every time he "catches monsters", he takes Jin Chen into his account book. While the two were trying to undermine each other, they also joined forces to deceive and deceive, causing chaos in both the human and fairy worlds. The Heavenly Court's pursuit team is pressing harder and harder, and the debt of human love is increasing day by day. Jinchen finally understands that the biggest taboo in forbidden love is "don't trust men, especially monster hunters." In this extremely absurd farce, is love a disaster or a heavenly KPI assessment?