I Rule the Wasteland Harem

Years after a third world war has torn civilization apart, the narrator scrapes by as a scavenger, trading salvaged junk for food and supplies in a lawless landscape. Classmates who bully him keep stealing the goods he worked hard to collect. One day he stumbles onto alien technology and saves three striking women, who soon become his wives. With these new resources in hand, he sets his sights on claiming the crown of the wasteland.