After the all-powerful "City Hunter" heroine was betrayed by her hypocrite boyfriend who had been in love for many years, she did not choose to tolerate it, but decisively broke up with her. In order to get back what belongs to her and give her ex a loud slap in the face, she reached a contract with the wealthy "Playboy" male protagonist who was in urgent need of a shield, and started a fake marriage. With her excellent skills and self-discipline, the heroine fought hard in the male protagonist's family business struggle and in the celebrity circle. She not only helped the male protagonist secure his position as heir, but also ruined his predecessor's reputation, and finally found true love that was evenly matched.