Villain, Don't Post It, the Female Supporting Character Just Wants to Save Her Life and Beat Cp

[Monster Catching Upgrade Stream] Born into a family that favored sons over daughters, Liu Ruhua struggled for seventeen years. Under the double blow of her family forcing her to get married and throwing her into a juvenile detention center, she was unable to survive. When she woke up again, she was possessed by a novel about cultivating immortals and became the male protagonist's annoying and vicious stepsister. Recalling the plot in the book where the original protagonist made everything possible and ended up miserable, she was filled with fear and determined to maintain the relationship between brother and sister. She took the initiative to show kindness to the heroine and tried her best to protect the relationship between the hero and heroine. But why did the villain with a terrible reputation cling to her shamelessly and refuse to leave no matter how tired she was and drove her away.