Lin Ran transmigrates to a parallel world, but without any special "golden finger" or cheat system, he resigns himself to the life of an ordinary office worker. One day, a mysterious app called "Spirit Net" appears on his phone. Believing it to be a simple role-playing chat game, Lin Ran creates a character named "Tongtian Jiaozhu" (Grandmaster of Heaven) and starts boasting wildly. He writes about trampling the ruthless path of cultivation, fighting against corrupt scholars, seeking justice for ghost cultivators, and defending demon cultivators.

Unbeknownst to him, the "Spirit Net" is real, and everything he says is taken as gospel by actual cultivators. He is unwittingly drawn into the perilous world of cultivation, where he is regarded as a legendary, powerful master. The story follows the hilarious consequences of his grandstanding as his followers and enemies alike act upon his "teachings," all while Lin Ran remains completely oblivious to the truth.

Years later, he is left bewildered, asking: "I was just making it all up, how did you all become Saints?"