The genres are historical fantasy, romantic comedy, shonen manga, and fantasy. The story is set in the high-class mansion "Ayakashi Hall," where "reincarnated" youkai gather. The protagonist is Ririchiyo Shirakiin, and Soshi Miketsukami appears as her SS (Secret Service). In the image, in addition to the manga books, you can also see cards that appear to be bonuses featuring the cover illustrations of each volume.