Two universes, separate worlds, and powerful boundaries. One world, where humanity is extinct, dispersed by an all-powerful eldritch horror that seeks to satisfy itself. Another world, where humanity prospers under a golden age of space travel and pride in democracy. What happens when one Spec-OPs soldier gets transported to the barren universe? Will he make friends with its remaining inhabitants, or will he unleash something far worse into his own galaxy?

Typical Isekai story? Pretty much. Murder Drones world with a harem? Yep. Superpowers?... uh... no, sorry. Except this time, you have no guide and no help. What are you gonna do now? (Crappy summary I know, but eh, that's basically this story)