Although Tang Yanli was a member of the Tang family, she was ostracized because of her status as a commoner and her mother being a Miao woman. She was born with a peculiar physique - "Glaze Pure Body", which is invulnerable to all poisons, but is also an excellent "vessel for refining poison". In order to survive the cruel family struggle, she secretly combined Miao Jiang's poisonous skills with Tangmen's poisonous techniques, and became famous. However, the "Huan Li Zi Mother Gu" was forcibly planted in her body by the family elders, and the mother Gu was in the hands of the head of the Tang Sect. Although this Gu insect gave her extremely high spiritual power, it would eat her heart like thousands of ants every full moon night, and she was destined not to live past the age of twenty. She stepped into the world, ostensibly to perform a secret mission for the Tang Sect, but in fact she was looking for a way to get rid of the poison in her body, get rid of the family's control, and search for the legendary fairy mountain and magical medicine.
