After ordinary employee Yu Xiao'an suffers a double betrayal from his girlfriend and boss, he unexpectedly awakens the once-in-ten-thousand-years Immortal Farmer Body and is pulled into an immortality cultivation chat group. Under the protection of his mysterious neighbor Liu Xingyu, he grows all the way from the Qi refining stage and engages in a desperate battle with the demon clan. When the demon lord Miduosi descends, Liu Xingyu's true identity from one hundred thousand years ago is revealed: she is the World Tree Guardian, Liu Shen. Ultimately, Yu Xiao'an uses the power of the Immortal Farmer Body combined with the World Tree's purification power to eliminate Miduosi and save the myriad realms.