Meng Cheng, a funny young man who moved around the city as a "temporary worker", unexpectedly signed a three-year "working contract" with an ancient alien beast - he was responsible for feeding, walking, and chatting with him, while the alien beast helped him solve all his troubles. During the contract period, he relied on this mysterious and arrogant beast to counterattack from a delivery boy to an Internet celebrity anchor, a pet shop owner, and even accidentally got involved in an organization of superpowers. However, on the day when the contract expired, the alien beast suddenly transformed into a human and handed out a "renewal agreement" asking Meng Cheng to continue to be its "exclusive shit shoveler"! To make matters worse, the ex-girlfriend brings her new love (actually a mistress villain who covets the power of the alien beast) to provoke him in an attempt to seize the contract rights. Faced with the triple crisis of emotional betrayal, rampant alien beasts, and urban mutation, Meng Cheng was forced to embark on a true path of symbiosis with alien beasts while he kept talking. This time, he is no longer just a worker, but becomes the master of strange beasts!
