In the ancient Chinese novel that modern editor Su Yue has proofread, the "white moonlight" who only lives in the memory of the opening chapter and promotes the male protagonist's darkening. The original owner was supposed to die of illness at the beginning of the chapter, but Su Yue's arrival changed everything. Faced with Xie Wuyuan, the crazy male protagonist who has not yet completely darkened but has shown signs of paranoia, Su Yue decides to take the initiative and use understanding and warmth to redeem this soul that is destined to be destroyed. However, in the process of changing her destiny, she discovered that her bond with Xie Wuyuan was earlier and deeper than in the original work, and the world seemed to have quietly deviated from the trajectory of the original work without her knowing it. The struggle for imperial power, family conspiracy, and emotional entanglements are intertwined. Su Yue must find a balance between protecting herself and redeeming the male protagonist to prevent the tragedy that swept the world.