Japan is called "the country with eight million deities"

Deities that reside almost everywhere and who in the eyes of Westerners appear very little divine.

The word that in Japanese means deity is kami (神), used especially in Shinto to indicate any entity endowed with a particular force or characterized by a peculiarity.

The word yökai (妖怪), instead, should translate as 'demons' but which in fact refers to a myriad of beings who seem much more likely to make prankster jokes than to seriously harm.

The point is that kami and yökai have the same substance, the same DNA: they are entities endowed with any form of power. The discriminating fact is that kami are worshipped and honored, while yokai enjoy no respect, are feared or simply ignored.

The ONI are what comes closest to the Western concept of Demon. Anthropomorphic, large, muscular and horned, some of them, servants of Enma, the lord of the Underworld, reside in Buddhist Hell and torment the damned in the most