He was originally a mortal delivery boy who accidentally traveled to the fairy world and became the only delivery boy. The gods have been practicing for thousands of years, but they still order a lot - the Queen Mother wants flat peach milk tea, Erlang Shen wants dog food, and Nezha wants barbecue. In order to survive, he rode a second-hand flying sword through the heavens, but accidentally gave away his invincible cultivation due to a takeaway order. From then on, the orders in the three realms were full, and everyone in heaven called him big brother.