Origin: Eye of the Abyss

The deep-sea scientific research vessel "Chasing the Light" encountered an unknown gravitational field anomaly at a depth of 10,000 meters and was dragged into a sea area that has never been recorded by any human detection equipment. The group of four passed through an energy barrier invisible to the naked eye and discovered a completely sealed ancient super civilization - "Ruins". It is older than any civilization known to mankind, and its technological dimensions are far beyond the scope of modern human understanding. The foursome became the only insiders of "Xu". They decided not to disclose the discovery to the outside world because any hasty contact could activate unknown risks. In the following weeks, each of the four endured the cognitive impact of the giant city: Liu Wencheng discovered that his daughter Liu Nian's brain waves were synchronized with the signal frequency inside the giant city; Zhao Cheng discovered that the symbols he rubbed in the Neanderthal cave twenty years ago were exactly the same as the architectural inscriptions of the giant city; Lin Ye's tactical bracelet began to play recordings from seven years ago; Wang Yang's right hand showed silver-blue fluorescence. Humans think they are exploring the unknown. But the unknown has watched humanity for hundreds of thousands of years.