Yu Su accidentally discovers that she is a malicious female supporting character in a book destined to die a tragic death. To rewrite the ending, she decides to collect love points from her husband, Qi Ye, and their three sons. Little does she know, the more she lives as she pleases, the more submissive she makes the three little rascals, while also completely captivating her cold-faced husband. However, behind the original female lead, Zhong Qianli, hides another system rewriting the plot.