Li Yan is a martial artist of exceptional skill, but a terminal illness leaves him with only a few months to live. In his moment of desperation, he encounters a man calling himself "Tapir," who sends him into a fruit of the "Yanfu Fruit Tree." There, Li Yan must complete three tasks assigned by the system within a strict time limit, earning money through boxing matches to exchange for Yanfu points, which he uses to purchase medicine capable of curing his fatal disease.
As Li Yan becomes familiar with Longyuan Fortress, where he now resides, he is gradually drawn into the conflicts brewing within the stronghold. He also discovers that other Yanfu Walkers are secretly competing against him. After overcoming numerous challenges, Li Yan ultimately succeeds in completing his mission and secures a new lease on life.