Chen Yuan, an ordinary college freshman, lives a life that is supposed to consist of classes, canteens, and the occasional game. However, a sudden car accident did not bring death, but threw him into a cognitive gap - which he crossed.
When he regained consciousness, what he saw was not a familiar ward, but a ward full of technology, yet cold and unfamiliar. Outside the window, there is a bright new world with technological levels far beyond imagination: smart trams shuttle silently on the three-dimensional transportation network, neural connection technology allows consciousness to travel through virtual wonderlands, and the huge virtual world called "Heart Abyss" is the second universe of human life. However, for him, the coldness and splendor of this world are just a matter of watching from afar. His home, his relatives and friends, and everything he was familiar with were left in that ordinary but warm old time and space. All Chen Yuan can rely on is his tenacious will and the simplest and most powerful belief - he wants to go home at all costs.