Taobao Across the Worlds

Tan Tian, a hero who saves a beauty, accidentally falls from a building. When he wakes up, he discovers that he has transmigrated to a parallel world?

Even more surprising, not only is the timeline different from that of his original world, but the world's very setting is strange... ...

Fortunately, with the System on his side, all manner of demons and monsters are nothing but trash!