Sai Ren Na De Dingzhi Rensheng

A novelist named Medea, who frequently stays up late writing, is on the verge of death. Before passing, she writes a novel with the intention of transferring her consciousness into it to live out a life she has carefully planned. However, the characters in the story do not follow her original script—her ideal prince turns out to be a deviant murderer, her loyal knight is a misogynistic homosexual, and her affectionate older brother becomes a henchman for the antagonist. Instead of being the ideal heroine, she ends up as the villainess. To ensure her survival, she must form an alliance with the hated Demon Lord.