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Intro. In Japan, there is a high rate of innocent deaths due to the existence of Oni (Demons) who kill and feed on human flesh to become stronger and satisfy their hunger, they were discovered a thousand years ago because the kingdom of oni Kibutsuji Muzan, who was once human, started to transform humans into demons to reach the sun as oni die charred when exposed to the sun, together with the Oni the demon corp was born, an orga that hunts and kills decapitated oni with the breathing technique of elements such as water, stone, flames etc.. however, the Superior Moons had the most powerful oni in the hierarchy, the inferior moons were the weakest and the normal oni, while the Demon corp had the strongest ones being the 9 Hashiras Gyomei, Tomioka, Tokito, Sanemi, Rengoku, Obanai, Uzui, Mitsuri and Shinobu Kinoe: The highest rank before the Hashiras. Kinoto Hinoe Hinoto Tsuchinoe Tsuchinoto Kanoe Kanoto Mizunoe Mizunoto: The lowest rank, received shortly after the Final Selection. This was the hierarchy of the demon corp.

Rengoku Kyojuro

@Taro