Dou Doudou was originally an inconspicuous young man in a small town. A nonsensical accident awakened his mysterious power of laughter, and from then on he stepped into a colorful, bright and fantasy world full of strange events. Along the way, he met many friends with different personalities. Under the training of Aunt Ximen and the guidance of Brother Pangu, he laughed all over the world and caused trouble in the three worlds. As the young master of the opposing demon sect, Hua Qianchi is both an enemy and an ally. In an adventure filled with laughter and tears, Hua Qianchi gradually uncovers the truth behind the demise of his family. Jiang Xiaohuan and Doudou's relationship gradually deepened, and their friendship and love continued to heat up. In the disputes between the three realms and the game between good and evil, the protagonists used funny jokes to resolve despair and break the crisis, and finally ended the world with a smile, peace in the three realms, and a happy ending.
