Liu Tianyi, a poor man who only had eight and a half dollars left after paying the rent, spent fifteen dollars at a garage sale to find a torn book with missing pages. As a result, in the middle of the night, he dreamed that a bad old man pressed his head and poured out weird skills on his forehead. Fortune telling, drawing talismans and chanting incantations, electricity emitting from the palms, running around while under the weight, watching people from a distance, secret techniques to seduce girls... There are all kinds of things. With no sect, no background, and no lower limit, he just set up a stall - "The iron mouth is straight, no compensation is allowed." From then on, Jiangcheng had a wild man named Tianshi who was mean-mouthed, dirty-handed, and so thick-skinned that he was bulletproof. He tells fortunes, reads feng shui, exorcises evil spirits and cures diseases, catches mistresses looking for dogs, bets on stones and picks up leaks, does everything. He never curses people overnight and goes crazy when something happens. The cool female CEO wants him to be her personal consultant, the unruly police officer comes to check his business license every day, the quirky internet celebrity female anchor pursues him to become his apprentice, and the mysterious cold beauty warns him that the broken book in his hand will lead to death. Liu Tianyi held a cigarette in his mouth and said: "Why can't I pick the peach blossom that I calculated based on my ability?"