In the thousand-year-old ancient domain, the beacon fire has not been extinguished, and the watchman Jingyuan is independent and confused in the endless years. He is neither a god nor a human being. He carries the "Memory Stone Record" and carries the skills and beliefs of eternity with his blood. Whenever civilization breaks down and classics are burned, Jingyuan quietly appears through the gaps in history and quietly returns the lost poems, endangered crafts and lost etiquette to the world. However, the undercurrent of the new century is surging, and illusion and forgetfulness are intertwined to form a confusion. For the first time, Jingyuan is lost in the labyrinth of his own inheritance. If everything is protected, is it possible for culture to regenerate itself? When the boundaries between the watcher and the watched blur, he has to choose between "keeping" and "letting go." The meaning of guarding and inheritance gradually turned into a poetic questioning of eternity and change during Jingyuan's long journey.