Ling Xuan, a monk who has perfected the golden elixir for a thousand years, went down the mountain to travel according to his master's orders. The golden elixir was mistakenly dismantled by the mortal man Wang Dazhuang. After his cultivation level plummeted, he was sent to the third suburban mental hospital because he talked about cultivating immortals. Unexpectedly discovering that the hospital is located on top of ancient spiritual veins, Ling Xuan was forced to pretend to be a mental patient and rely on the rich spiritual energy in the hospital to rebuild his cultivation. On the way, he met a middle school patient, Granny Su, a reclusive Nascent Soul cultivator, a strict psychiatrist, a gentle nurse and a group of strange patients. Later, monks from various sects went down the mountain to look for him, constantly staging hilarious misunderstandings of immortality and mortal misunderstandings. Ling Xuan broke through the shackles of the traditional system of cultivating immortals, polished his Taoist heart through daily necessities, rice, oil and salt, chats with fellow patients, and all kinds of things in the world, and finally realized that the Tao does not need to be hidden in the mountains, and that the fireworks in the world are the highest immortal mountain.
