Qing Niu is the mount of Taishang Laojun. Because of his love, he was thrown into the mortal world by the Queen Mother of the West. After hundreds of years of experience, he used his magic to save countless people. He wanted to wash away his sins and return to the fairy world, but he never expected that he met his love rival in the end, the ancient beast Hong Yang who also entered the human world for training. Therefore, his return to heaven is far away. He can only stay in the human world to continue killing demons and eliminate demons, and earn money as a matchmaker. . . . . . . .