In the chambers of the Edo harem, two newcomers uncover political intrigue, rivalry and a vengeful spirit only one traveling medicine seller can vanquish.

One day, Koyomi Araragi encounters the horrifying vampire, Kiss-shot Acerola-orion Heart-under-blade A.K.A. the “King of Apparitions.” He saves the fatally wounded Kiss-shot by offering his blood at the expense of…