After staying up all night, Ke Miantang suddenly dies and transmigrates into a novel. Bound to a system, she must play the role of a vicious female side character and become the high-maintenance girlfriend of the young master Rong She. She must wait until the original female lead appears and complete a six-month mission to receive a one-hundred-million bonus and escape. Failure means suffering the tragic fate of the original character. She carefully carries out her tasks, only to discover that Rong She is completely different from his characterization in the original novel, treating her with extraordinary tenderness and favoritism. As they spend time together, Rong She has already seen through her identity and secretly makes plans to keep her by his side. As the mission nears its end, the system malfunctions, and Rong She secretly alters the mission. Torn between falling in love and wanting to escape, Ke Miantang is stopped at the airport boarding gate. Later, Rong She gets into a car accident while saving her. Realizing her true feelings, Ke Miantang joins Rong She in breaking free from the constraints of the storyline. Together, they find lasting love and happiness.