Interesting premise, I don't mind that it borrows from Fallout and other apocalyptic genres. World building is so-so, doesn't delve much into it even past Chap 90.Major problem with character development. MC is pretty useless, has no redeeming qualities/talents/virtues. It's fine if MC just wants to be rich and successful, but it keeps ****** you wonder why MC is randomly being given this opportunity to cross worlds and borrow technology/resources from each side. He is only a human mule moving resources between worlds.We empathize with all protagonists because there's something in them that resonates with us, or that we aspire to be (hardworking, etc). This MC has nothing. When he becomes rich, his parents are completely ignored (or at least omitted from the novel), just many many MANY chapters of self-gratification.MC laters ends up just thinking with his d**k and collects women for no other reason than just because he can. MC constantly thinks to himself that he should stop. Then he keeps collecting more women. It also wander into loli/semi-pedophilic areas, probably from the sexual fetishes of the author and readers (around chap 85+). I think there are plenty of ***** novels around if people are into that. Pretty lame to see it here.