Jiang Yue accidentally time-travels into a novel, becoming the vicious female supporting character whose original fate is tragic. Facing the system's arrangement, she must change the established plot and avoid heading toward her original ending. After getting along with her cold-faced husband Zhou Ji and her insecure son Zhou Zhengchu, Jiang Yue gradually discovers that their originally alienated family relationship is not unchangeable. While dealing with system tasks and the constantly deviating plot, she simultaneously rehandles the interaction between husband and wife, and the estrangement between mother and son. As Zhou Ji discovers the changes in her personality and habits before and after, Jiang Yue's true identity gradually sparks suspicion, thereby bringing new conflicts and twists to family life.