The female protagonist is the adopted daughter of a gangster, and the male protagonist is the young leader of a rival gang. The two fell in love without knowing each other's identities. After getting engaged, the male protagonist's family set up a trap to kill the female protagonist's family. The heroine's family was brutally exterminated and she was imprisoned for three years. Three years later, she pretended to be completely tamed, regained her freedom through a self-directed and self-acted "suspended death" and returned with a new look. She lurked beside the male protagonist as a newcomer, taking back the power and industry in his hands step by step. When he was most dependent on her, she ruined his reputation and destroyed his family. But in the last step of revenge, the heroine discovers that there is another secret behind the family's destruction, and the hero has been hiding the truth for her.