From the introduction: Welcome to the world of Black Dog’s Submission Sailor Moon h-doujin series. It’s been a pretty wild time to be living in this world’s Japan for the last few years. Tokyo has been invaded by monsters every year like clockwork since about 1995, and every year the Sailor Senshi beat them back and restore peace to the world. But the likes of Queen Beryl and Sailor Galaxia have come and gone and these days the only threats our heroines face are leftover youma, mere table scraps from previous battles.