Jin Zhao, a renowned designer, transmigrates into a novel as its vicious supporting female character and becomes bound to a villain system that requires her to advance the romance between the original male and female leads. To change her tragic fate, she clings to her husband through an arranged marriage, Wei Ting, the powerful heir of the capital's elite circle. She abandons her former bootlicking ways and transforms into a dazzling beauty who humiliates those who once looked down on her. As they spend time together, feelings gradually develop between them. Jin Zhao helps Wei Ting deal with internal family power struggles, while Wei Ting protects her. As she completes the system's missions, she repeatedly breaks the original plot's bugs. In the end, she changes not only her own fate but everyone else's, breaks free from the system, and finds lasting happiness with Wei Ting.