The ex-girlfriend turns into a black man. Jun Wan and Lin Lang are friends. The relationship between ex-girlfriend Linlang and Junwan is friends. Linlang is a worker in the female supporting department. She travels to various worlds to become the male protagonist's tragic ex-girlfriend. She plans and schemes to win people's hearts, and she can win in life even with a bad hand. She is the brightest cinnabar mole in the heart of the proud man, but she loves no one except freedom.