In Rikuo`s past, Rikuo`s father Nura Rihan is seen walking with a five-year-old Rikuo and a mysterious black-haired woman. As Rikuo runs ahead, Rihan stops to observe his surroundings; suddenly, the woman stabs him from behind, killing him, while Rikuo can only look on in shock. Three years later, Rikuo is shown playing pranks on his yokai family and learning the yokai art of "dine-and-dash" with his grandfather, the Supreme Commander Nurarihyon. In a meeting with the yokai leaders of the Nura Clan, the Supreme Commander made an official announcement, declaring that his grandson would become the next heir; however, Rikuo is against this due to an encounter with his friends, who claimed that all yokai are evil, and upon hearing the evil deeds of the clan leaders towards humans. On the way home from school, his classmates were involved in an accident on their bus, the cause being a group of yokai from the Nura clan that sends children to the depths of hell. In order to save them, Rikuo transforms into Night Rikuo for the first time and leads his own Night Parade of a Hundred Demons, claiming to all that he would become the Third Heir of the Nura Clan and declaring that he will protect humans.