Sun Yan, an ancient book restorer, took over a bronze mirror from the Warring States Period. However, while repairing it, he was burned by the map of Kunlun that appeared in the mirror, and he glimpsed the illusion of alien beasts. On the same day, the corpse of the "Shark Man" recorded in the "Book of Mountains and Seas" was discovered in the South China Sea, and disappeared in front of everyone, leaving only a jade scale engraved with the same symbol.
Symbols are the guide, illusions are the basis. He was forced to form a team with Su Qingyi, a pulse-keeper professor who pursues his family's mission, Lu Shen, a security consultant with special skills, and Lin Xingyao, a photographer who pursues the truth about his father's disappearance, and go to Kunlun together. They didn't know that the thousand-year barrier was crumbling. Behind the rift between the ancient secret realm and the real world, a pair of dark, pupil-less eyes had been staring at it for a long time.
The summer solstice is approaching and the gates of heaven are about to open. Not only do they have to face the strange creatures and the turbulence of time and space in the secret realm, but they also have to be wary of the "Xunshan Society" in the dark who also know the secrets and attempt to control the "Tianshu". When myths shine into reality, every step taken may be a sacrifice that will never return.
