Another World: I Create a Mechanical Army

The surging army of alien beasts came suddenly, and human beings were forced to retreat into corners and go their own way. Li Yebai traveled to another world and obtained a system that can create a mechanical army! ! "System, which place has a lot of metal?" System: "Master, each person you save can be used as an experience point to upgrade. Only at higher levels can you detect the location and depth of metal." "Okay, is there no other use besides creating a mechanical army?" System: "Higher levels will have active skills available!" "It's okay. It seems that I traveled to this other world just to save mankind!!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.