After I Died, I Possessed the Female Lead

My name is Bai Zhi.

Only after I died did I learn that this world was just a book, and that its heroine was my best friend, Song Xiaohe. I was merely a stepping stone on her road to success, and a hopelessly stupid one at that.

My overwhelming hatred kept my soul from fading away. I followed Song Xiaohe, and one day discovered that I could actually possess the heroine. That was when my path of revenge began.