When I woke up after drinking, the world had gone mad. A gender ratio of 1 to 9 A parallel world where women overwhelmingly outnumber men, and men are rare. Somehow, the academy stories of blue schoolgirls in games had become tales of red schoolboys' brotherhood, and Girls' Frontline had become Boys' Frontline. And then─── "Oppa, have you eaten yet...?" My sister, who used to be as blunt as if she'd been shot in the head, suddenly transformed into a proper, well-mannered young lady. "Holy shit... my friends got Thanos-snapped." In exchange, I went from being just a loner to a loner without a single friend... Damn it. At least I'll be exempt from military service now.