Bekataro are ugly and malevolent yokai driven by a never-ending hunger. They roam the streets in search of anything they can find and consume - including humans. They are well-known for their humanoid form which is often pulling down its lower eyelids with its fingers and stick its tongue out in a mocking gesture.
Bekataro are believed to have their origin with a wicked child who was born with a supernatural hunger, devouring more food than 10 or 20 adults, yet still wanting more - to the point he started to hunt humans as prey. From his eternally hungry spirit rose the Bekataro.