>>723729518
You play as a regular guy in a world where women have become the dominant gender via overpopulation (they can breed without men by using mana for artificial insemination, but only women are born that way). Mana is a precious resource that is most easily obtained from a guy’s semen. Thus men have died out, human men are especially rare, and basically the only other men that are alive are crossdressing femboys since they look female enough to not get attacked on sight by monster girls. The first femboy in the series, Fake-Rabi, corrupts the MC to have a femboy fetish, so he can fuck the others too. He even turns one of them gay.