Hida Kayo (I)

Hida Kayo was a samurai of the Crab Clan who defeated Kazanagan no Oni, a monster which had plagued the Crab several times over the centuries. Kayo swore that he and his descendants would always stand in its way. Centuries later his last descendant, also named Hida Kayo, was murdered and the oni fully materialized in the mortal realm to attack again the Kaiu Wall.