The protagonist, Li Bufan, is a mortal immortal doctor who is well versed in the principle that medicine and food come from the same source. He was named the Food and Healing Officer of the Heavenly Court for resolving the crisis in Sun Wukong's peach garden. It was found that the immortals in heaven were troubled by emotional illness and occupational diseases. Taishang Laojun's elixir treated the symptoms but not the root cause. Moreover, the efficacy of the immortal plants in heaven declined due to its emphasis on longevity rather than nourishment. Only the five-flavor divine melon could restore the root cause. Li Bufan uses the method of dietary therapy in the mortal world to cure the chronic diseases of gods and gods with a series of delicacies from the same source of medicine and food. At the same time, he engages in a confrontation with the master of the imperial kitchen who monopolizes the food in heaven and deliberately destroys immortal plants. He joins forces with Sun Wukong, Shan Xiaofeng and the cured gods to resolve the crisis of declining immortal power in heaven and convey the positive values of cherishing food and integrating medicine and food.
