After Awakening, the Female Supporting Character Went Crazy in the College Entrance Examination Novel

It wasn't until after my death that I discovered that I was just a control group for the novel's heroine. Whenever my best friend who plays well with me sees the heroine sister, she will stick to her as if she is possessed by an evil spirit. As long as my sister exists, my parents don't seem to remember that I exist. My first boyfriend was obsessed with my sister after he saw her. Because my sister has the halo of being a heroine, no matter how hard I try, she will become a heroine. The heroine was able to come out on top in the college entrance examination, but I in the control group was definitely left behind. Until the plot of the novel returned to its original point again, I also discovered the bug in the novel. This time, I will take back everything that belongs to me!