The Heroine of the Sadistic Novel Proclaims Herself Emperor and Wants to Make Me Her Queen

Chi Jiajia, who had just finished the high school entrance examination and was about to celebrate her fifteenth birthday, was killed by a drunk driver on her way home after having some wild fun after taking the exam, and suddenly she was transported into the body of a drowned ancient beauty. With a height of 1.7 Meters, the coolness and good looks that are the standard features of a sadistic heroine, tears fell from the corners of her mouth. I like everything, but I'm not used to my sudden height. I accepted my sister's memory and the subsequent plot, and I was so angry that my teeth itched. She discovered that she could chat with her beautiful sister, who was in emo twenty-four hours a day, twenty-five of them. Damn it, as long as I, Chi Jiajia, am here, the scumbag will retreat. It's a pity that I was plotted against me after all. It really hurt when I was about to die. My sister cried and told herself to hold on, but sister, I'm really sleepy. Then, I returned to my own world and woke up from a vegetative state. Three years passed leisurely. One day after I took the college entrance examination, I actually went back again. But, why did my sister kill the male lead, the male partner, and the female partner, proclaimed herself emperor, and made herself the queen?