Kuro Bozu

A kuro bōzu is a dark, shadowy yokai which looks somewhat like a bald-headed Buddhist monk - however, its exact appearance is vague and difficult to make out. They wear black robes and haunt areas inhabited by humans. They come out at night, sneaking into houses after everyone is asleep. They creep up to their victims - primarily women - and suck the breath out of their mouths. They also slide their putrid tongues into the mouths, ears, and all over the faces of their victims. Those visited repeatedly by kuro bōzu become very ill.