The story follows the three daughters of Qin Luo, a demon emperor who slaughtered humans. To protect humanity, the three sisters—Qin Menglan, Qin Qianqian, and Qin Xianru—joined forces to defeat their father. The novel delves into their memories and accusations against Qin Luo, revealing his transformation from a loving father to a cruel tyrant. The story focuses on the aftermath of their actions and the complex relationships between the daughters and their monstrous father.