On an ordinary day, Cao Xiao Man's brother, Xiao Bei, is stabbed by a man after defending a mysterious girl. To cover the incident's costs and buy medicine for his brother, Cao Xiao Man decides to earn money in a rather strange way: cross-dressing as a girl and seducing men. When he arrives at his client's house, everything seems to go as planned, but the client soon discovers that Cao Xiao Man is, in fact, a boy. He decides to put Cao Xiao Man in a game where he is turned into a girl. In order for Cao Xiao Man to go back to being a boy, he needs to complete the game and find the 7 Loyalties located all over the country.