Li Tiezhu, the last disciple of the ancient martial arts hidden sect "Hunyuan Sect", was ordered by his master to enter the human world to experience, but he made countless jokes because he did not understand the rules of modern cities. He made a living by delivering food, but unexpectedly used ancient martial arts skills to solve various strange problems. He gradually became involved in the urban underground world, business struggles and the crisis of ancient martial arts inheritance, and finally found his self-worth and gained love.
