The Ye family was wiped out overnight, and the ancestral precepts were recognized as the owner. An ordinary young man, Ye Fei, crawled out of the blood and fire. Carrying the family's blood feud and half of the lost medical scriptures, he embarked on a heaven-defying road of killing with medicine and exchanging lives for lives, completely abandoning the heart of the Holy Mother. He has only two principles: "My patients cannot be taken away by the King of Hell; my enemies cannot be saved by God."