The heroine was originally the top secret guard of the palace, code-named "Chi Xiao". She was silenced by her master because she knew too much. After being seriously injured, she replaced Shen Luan, a beautiful lady who entered the palace and died unexpectedly. She doesn't have any golden fingers, only her keen insight developed by licking blood from the tip of a knife, her exquisite killing skills (which turned into a trap after entering the palace) and her absolute cold reason.
After entering the palace, faced with the frame-up of the unruly concubine, she set up a trap without any nonsense, causing the other party to "accidentally" die or fall out of favor; faced with the complicated power network in the harem, she dismantled it as accurately as if she were on a mission. The male protagonist is an emperor who is suspicious and violent by nature. He is tired of the hypocrisy of the harem, but is attracted by the female protagonist's "wildness and murderousness disguised under a docile skin." The heroine regards the emperor as the "highest guarantee of survival", and she conquers it step by step. From a small promise to survive, she becomes the imperial concubine with decisive killings. In the end, she works side by side with the emperor to eradicate her former master (the rebel prince), and has complete power over the world.
