According to Japanese folklore, Onmoraki is a fire-breathing, bird-like demon resembling a black crane. Its face resembles that of a human and it has a spine-chilling chirp. It is created from the restless spirits of fleshy dead corpses who have not received a proper memorial service. It is written that if a person is caught sleeping in a temple's sermon hall, the Onmoraki will rebuke them while shaking its wings. In the later works of Fujisawa in Japan, the Onmoraki is said to shout the degeneration sutra in the household altar of priests who neglect to read their sutras.