What do world governments do when they learn that fantastical beings are not merely fiction, but flesh and blood -not to mention feather, hoof, and fang? Why, they create new regulations, of course!

'The Interspecies Cultural Exchange Accord' ensures that these once-mythical creatures assimilate into human society - or else! When hapless human twenty-something Kurusu Kimihito becomes an involuntary 'volunteer' in the government homestay program for monster girls, his world is turned upside down.