Ye Chen, the master of the Yin-Yang Hehuan Sect, was backstabbed by his senior brother Mo Yuan, resulting in damaged divine consciousness and reducing him to a fool. He descends the mountain to overcome a love trial and search for his long-lost younger sister. Jiang Xue, the beautiful female CEO of Hangzhou, accidentally gets acquainted with Ye Chen, who is working part-time at a bar, and immediately takes him to register their marriage to make him a matrilocal son-in-law. Acting foolish and playing dumb in the Jiang family, Ye Chen secretly reveals his strength, slapping the faces of the Jiang family members who despise him and the provocative prodigal Zhao Tiankuang, cures poisoned Grandma Jiang with the King of Hell Pill, and overawes the divine doctor Gu Danshen. He pacifies the company crisis, tracks down his adopted sister Ye Rou, and all the way plays the pig to eat the tiger to clear out villains. As his strength recovers, Ye Chen confesses his identity, shares deep affection with Jiang Xue to successfully fulfill the love trial, and breaks through to the Earth Immortal realm.