The Yandere Sister Just Wants Me to Bully Her

The protagonist, who is a novelist, deeply detests women who appear innocent and pure but are manipulative, so she intentionally creates such a main character in her book and arranges for her to be mistreated repeatedly! However, she never imagined that one day she would end up transported into the book, and now she is determined to take personal revenge! But due to her tendency to fall in love with beauty, she cannot bring herself to harm the beautiful, innocent protagonist and, step by step, ends up becoming her guardian... While she is anxious about her misguided feelings, the ever-fragile protagonist pushes the male protagonist three meters away and confesses his love for Gu Xing in a stubborn way! What! So, after all, I'm the one being protected!

Source : MU