Nobusuma

A nobusuma (野衾) (lit. "field bedding") or tobikura (飛倉) is a type of flying or sky-gliding yōkai monster, whose lore is localized in the Edo (now Tokyo), which some say is a transmuted bat, and others a flying squirrel. It may latch onto a human from and cover his eyes and mouth, perhaps to suck blood. It attacks animals to feed on their blood, according to other sources. It is also said to consume fruits or tree-nuts. As for it allegedly consuming flame (or smoke from a fire), a source explains that it engages in a sort of fire-eating and -breathing behavior after chomping the tip off a lit torch. According to the transmutation theorists, it starts off as bat, but with age eventually becomes a nobusuma, then later another yōkai named yamachichi (lit. "mountain father"); this yamachichi is characterized as a vampire due to its habit of sucking the breath out of a sleeper and even cause death.