Would you pay in blood to have access to the witch's knowledge?Rumors about Yuuri Watoh being a witch who feeds upon the misfortune of others have kept customers away from her Eastern Medicine Shop as long as she can remember-until he showed up.Intrigued by the rumors, Count Ernest Travis Selden, close attendant to the Hylant king and a notorious eccentric, seeks the Hinomoto witch's specialized knowledge to solve a royal incident. But borrowing the witch's aid comes at a steep price-one that can't be paid in gold or jewels.How will the stubborn shut-in vampire witch who hails from the East handle the peculiar Western Count who frequently brings her problems to solve and seems all too happy to pay the price?