This drama is adapted from Lero's comic book of the same name, telling the story of a love triangle between three people who hold secrets: Shi Xing, who suffers from male phobia and excessive interference from her mother, meets Ritsuko, a handsome college junior who suddenly appears.But she is actually a stalker who has a crush on Shi Xing.Shi Xing, on the other hand, does not cause panic towards Hasumi, the chef of the women-only cafe, but he is a peerless playboy.Then Shi Xing formed a “Secret Alliance” with Hasumi on the condition of maintaining a relationship with Ritsuko.