Akaname

A monster characterized by having a long, skinny tongue that inhabits the Zipangu region. As their name suggests (akaname means "filth licker"), they mainly feed on the "filth" of human men. They make their flexible tongue crawl all over a man's body, licking up every bit of filth. They tend to prefer unhygienic, mentally- or physically-fatigued men. They suddenly appear out of nowhere in human settlements, lured by the scent of men, and wait for their prey by lurking in bathrooms, etc.