(from ebookjapan):

This is a bizarre and sexy manga by the master of horror manga, Jiro Tsunoda, depicting men who are at the mercy of a demon woman, Mako.

A young man is walking through an empty town at night when all the bars he frequents close early, and he is lured by a beautiful, half-naked woman standing in the street, Mako, into a strange restaurant called Walpurgis.

There, the young man drinks a drink called "Witch's Blood" and spends a night of wonderful pleasure and...!