Deep in the Mingyue Mountains in eastern Sichuan, there is a three-foot-high bluestone door with the words "Fengmenpu" engraved on the lintel. The gatekeeper Cai Jing has been sitting here for 1,846 years. He was originally a farmer under Kuocang Mountain in the Eastern Han Dynasty, but a golden elixir was stuffed into him by the Immortal King. From then on, his soul never left, guarding the only passage to the immortal world for the human world.
In 2026, Bao Zhongyuan, an archivist who returned to his hometown for a funeral, accidentally entered a closed shop. Cai Jing opened the yellowed book: "I have been waiting for you for 1,846 years. You are the one who opened the door."
Seven days later, Cai Jing started from the story of Pangu's creation of the sky—Nuwa's hands were scalded while patching up the sky...
