The Two-Worlds Trader: Scavenging for Trash in the Wasteland

[The protagonist is no do-gooder, ruthless and decisive. Enjoy without worry.]

Thanks for asking! I was sitting on the toilet in my rented apartment when a portal to a wasteland world suddenly opened!

With my left hand, I flip near-expired food for profit and rake in Source Crystals to become a One-Punch Man. With my right, I colonize the wasteland and become its overlord!