Traveling Through the End of the World with the DNF System

Chen Feng, a pig-footed player, accidentally knocked down a water cup and was electrocuted while playing DNF. He accidentally traveled to the post-apocalyptic city. When he was at a loss what to do, he inexplicably heard familiar music and realized that when he time-traveled, he had inexplicably brought a system with the same name as the game he was playing to the post-apocalyptic city.