Apocalyptic Super System

Upon the arrival of the apocalypse, the world turned into a hunting ground for zombies and mutants. Zhao Tianlei, an ordinary student who accidentally came across a mysterious super system, witnessed a scene of complete devastation and struggled to watch as his schoolmates were slaughtered one after another. With his super system that allows him to evolve and exchange, how will Zhao Tianlei lead mankind in its fight against the zombies and restore human civilization?