Apocalyptic Dream Battle System

In the 22nd century, humankind's technology has become more and more advanced, but it has brought real environmental damage and more young people are unemployed. Liang Yu is one of them. He has no fixed occupation and can barely support himself. He is an otaku. Like many otakus, he loves to play games. Now he is obsessed with a game called Dream War. If there were no accidents, Liang Yu would have lived his life in such a haphazard manner. He would have been lucky enough to find a wife and start a family, but accidents happened. . . . The doomsday came quietly, but when humans discovered it, they were too late to react. Human beings panicked, collapsed, helpless, and went crazy, but this could not stop the coming of the doomsday. But Liang Yu discovered the difference in himself. He obtained the system of the Dream Battle Game, which changed Liang Yu's future path. How will he go on in this apocalyptic world?