Aka shita, Japanese yokai: is a mysterious spirit which takes the form of a dark cloud with sharp claws and a hairy, bestial face. Its most prominent feature is its long, bright red tongue and mouth. It appears during the summer months, when rain and water are most valuable to ensure a successful growing season. Only the shape of its hairy, monstrous face and long, bestial claws are known. The rest of its body is perpetually hidden inside of the dark, black clouds in which it lives.