Armor Hero: After Transmigrating, I’m Bound to an Armor Hero Development System

[Armor Hero One + Armor Hero Two + Armor Hero Three + Unknown] (Does not include any villains or heroes. Other characters outside the three Armor Hero series may appear later.)

I transmigrated into the Armor Hero world with a System at my side, so why is everyone here so ridiculously powerful? Was I really supposed to come here and fight them?

A friendly warning: this is an extensively reworked story~