In a world where everyone wants to kill villains, Gu Pan is given a mission. As a female general of Daxia, she is full of martial arts skills and is determined to kill, but this time, her enemy is He Yun, the villain who will be destroyed by the "protagonist's halo" in the novel.

The story begins with a life-and-death moment on the edge of a cliff in a battlefield. She jumps off the cliff to save a man and protect him, only to complete a systematic mission to return to the original world. However, she didn't expect that this cold and gloomy villain, who treats human lives as if they were nothing, would be touched by her little by little.

When the truth is gradually revealed, she realizes that there are layers of conspiracies behind this "book wearing", and there is no easy way to judge good and evil.

Is it because of the mission? Or is it a genuine defense? When she fights with He Yun until the last moment, the choice of fate has been quietly reversed.