Everyone knows that the demonic witch Yin Luo can scare gods and weep ghosts with her poisonous skills, leaving no grass growing wherever she passes. The righteous monks hated her so much that they offered a bounty so high that it could buy a city. Everyone wanted to kill her and then quickly to prove the way of heaven. But no one knows that the first commandment of Yin Luoxiu's "Ruthless Poison Way" is - do not hurt the innocent, do not harm children, and do not deceive the common people. What she killed was the hypocrite who slaughtered mortal villages to refine evil weapons. What she was crippled was killing her fellow sect member White Lotus in order to seize the treasure. What she poisoned was a family of immortal cultivators who exploited the common people and took human life seriously. Yin Luo thought she would walk on this lonely and ununderstood road forever, until she met Yun Qingshi, a man who was known as the "Light of the Righteous Path". He was supposed to be her most sworn enemy. When they first met, he pierced her heart with a sword, and her poison backfired, hurting both sides. When they met again, she was surrounded by both good and evil forces at Soul-Ending Cliff, but he stood in front of her and told everyone in the world: "She may be extreme in her actions, but her heart... Is not stained by dust." Yin Luo sneered: "Leader of the right path, are you blind?" Yun Qingshi looked into her eyes and said seriously: "I have seen you quietly planting detoxifying herbs for diseased villages, and I have also seen you hanging monks who bully mortals on the city wall. Yin Luo, your way is cleaner than most people in the world." Use poison to practice the way, and kill to stop killing. If the world is clear, she is willing to be a mortal; if the world is turbid, she is the only poisonous wine, feeding the devil with her body in exchange for a moment of tranquility in the world.