The Lu family went bankrupt, and Lu Xiao lost his family. With his younger sister gravely ill, he took their marriage contract to the Huang family to ask for help with her medical expenses, only to suffer every kind of humiliation before they broke off the engagement. By a twist of fate, he also acquired the legacy of a poison doctor. Soon, he was caught up in the Han family's scheme to choose a son-in-law and inexplicably married their second daughter, a mute who was paralyzed from the waist down. Thus began a carefree life.