The End of the World: Start Your Journey by Picking up a System

The last survivor of a failed civilization and a system that failed in its mission and struggled to survive. At the end of the road, they embarked on a journey through another world in order to find the meaning of living. The apocalypse destroyed Yang Xiao's civilization. Having lost hope, he gave up thinking and walked around the wasteland like a zombie. Just when his consciousness was about to disappear, he suddenly encountered the system. But this system is a little different from what I know...