According to ancient Inazuman folk tales, as the day wanes and eyelids grow heavy, if you're very lucky, you might just catch a glimpse of a yumekui-baku — a kind of youkai that can slip into your dreams and devour the nightmares that prey upon your slumber.
Household figures from the world of lore and legend, these youkai gradually sought to carve out a place for themselves within human society. When the Aisa Bathhouse reopened with fresh funding, a group of yumekui-baku — having taken on the form of human girls — stepped forth into the public eye as clinical psychologists.
Yet without a shadow of a doubt, there is one who stands out above all the rest, and her name is Yumemizuki Mizuki. Somehow, even when treating the most despondent of clients, she always manages to help them discover a newfound sense of happiness. Within just a few short months of business, a veritable torrent of positive reviews had solidified her reputation as an invaluable asset to the Aisa Bathhouse.
Some have surmised that the success of such therapy must have something to do with their ability to consume nightmares as yumekui-baku; but confronted with such speculations, Mizuki responds with naught but a knowing smile. Only a handful of people ever sense a hint of the faint weariness hidden beneath her calm demeanor...
