Wo Ba Nan Zhu He Fanpai Dou Yang Waile

A character named Fu Sang, who harbors deep resentment, finds herself time-traveling into a Mary Sue novel. She is linked to a system that tasks her with increasing the popularity of the male protagonist and the villain, ensuring they do not turn against each other due to the future heroine's influence. Despite her belief that raising children only leads to more resentment, she begins the process of raising the two, only to find the task more complicated than anticipated.