Lu Chen, the young master of Xuanmen, was seriously injured in a sneak attack three years ago. He was rescued by the old man of the Su family and got engaged to Su Nanyan. However, he was severely injured while rescuing Su Nanyan, causing his martial arts to be completely destroyed and he became stupid and disabled. Three years later, the Su family declined, and Lu Chen was bullied by his father-in-law Su Xingchang. However, he was inherited by the Qihuang Sect, and after regaining his sanity, he made an oath to protect Su Nanyan, who would never leave her. Su Xingchang wanted to sell his daughter for glory, but Lu Chen faced many difficulties because of his reputation as a stupid son-in-law. But he faced everything with a smile based on his inheritance and insisted on repaying grudges. He convinced the three major families, and the black hands behind him gradually emerged, starting a counterattack and revenge.
