While the day belongs to humans, the night belongs to yokai,supernatural creatures that thrive on human fear. Caught between these worlds is Rikuo Nura. He's three-quarters human, but his grandfather is none other than Nurarihyon, the supreme commander of the Nura clan, a powerful yokai consortium. So, Rikuo is an ordinary teenager three quarters of the time, until his yokai blood awakens. Then Rikuo transforms into the future leader of the Nura clan, leading a hundred demons. As Rikuo trains to increase his Fear, his true yokai power, the human yokai hunter, Kubinashi, goes on a rampage to kill the yokai of Kyoto. Kubinashi is attacked and kept at bay by the yokai Ibaraki-Doji who has a shocking weapon—the Devil’s Drum, a deadly attack with a dark secret to its range of power!