Xie Mingxue accidentally slipped into a sadistic novel and became a vicious female supporting character. With her system, she determined to subvert the plot and take revenge on the crazy male protagonist Xiao Sichen. She originally wanted to make the plan secretly, but she didn't know that the whole family in Duke Anguo's house could hear her thoughts. Everyone used her "plot spoiler" to break the situation first, and joined hands to tear the villain apart, changing the fate of the whole family. In the process, she met her best friend Xiao Yanran, and her bond with the mysterious and powerful national master Bai Ze gradually deepened. The royal power struggle intensifies, and a past life destiny that transcends immortality is waiting for her to reveal the truth.