The city of Liangzhou was destroyed, and the entire Dugu family was executed. Zhong Linian, a female official married to the princess, escaped by chance, but was rescued by the mysterious Taoist Wu Qi - who was actually imprisoned. She was poisoned by a strange poison and was forced to become a Taoist nun "Shatang" and depend on the antidote every month to survive.
Three years later, Cheng Shijun, a bookkeeper who came to Pengze County to investigate an old case, met her while hunting down human traffickers. From testing each other to fighting side by side, the two gradually uncovered a shocking secret: the powerful in the court used babies and wet nurses to refine the "elixir of longevity", and all this pointed directly at the emperor.
Zhong Linian's true identity was exposed, and her only relative, her cousin Dugulin, became the male favorite of her archenemy, Princess Changping. The "immortal" physique hidden in her body has become the key to the competition between all parties.
Concept: Is immortality a punishment or a reward?