The Peasant Girl's Guide to Poison

Su Wantang, the daughter of a medicinal herb farmer in Spirit Herb Village, is born immune to all poisons. Her legitimate elder sister envies her and frames her for poisoning a clan elder. At the brink of despair, she activates the Negative Emotions System. By absorbing others’ negative emotions toward her, such as malice and fear, she can exchange them for fragments of the Classic of a Hundred Poisons and unlock the ability to control poison. She first uses basic poison-detection skills to prove her innocence, then exposes her sister’s plot to conspire with a poison maker from another village to poison the elder. Later, to save a young beggar afflicted with a strange illness, she exchanges System points for the Poison-Transforming Art and uses it to refine an antidote, quickly making a name for herself. At last, during the Medicine Sect’s trials, she dispels the poisonous mist of a thousand-year-old serpent king using the advanced Poison Mastery Realm. The sect’s chief elder takes her on as a personal disciple, and she unexpectedly discovers that the System’s fragments are connected to the Spirit Pivot Jade, which vanished along with her mother years ago. Gu Yan, the coroner who has been secretly helping her all along, turns out to be a covert guard tracking down the real culprit behind her mother’s murder.