Ririchiyo Shirakiin is the sheltered daughter of a renowned family. With her petite build and wealthy status, Ririchiyo has been a protected and dependent girl her entire life, but now she has decided to change all that. However, there is just one problem—the young girl has a sharp tongue she can't control, and terrible communication skills. With some help from a childhood friend, Ririchiyo takes up residence in Maison de Ayakashi, a secluded high-security apartment complex that, as the unsociable 15-year-old soon discovers, is home to a host of bizarre individuals. Furthermore, their quirky personalities are not the strangest things about them: each inhabitant of the Maison de Ayakashi, including Ririchiyo, is actually half-human, half-youkai. But Ririchiyo's troubles have only just beg