Rikuo Nura doesn't want anything to do with evil youkai, and just wants a normal life. Too bad he's a quarter youkai, and Nurarihyon, his grandfather, is insistent that he takes over as head of the Nura Clan. He's able to keep his supernatural secret life hidden from his classmates, as he can only transform into a youkai at night, for six hours at a time.

Unfortunately for him, various youkai factions are out to target both his youkai and human friends, and like it or not, he needs to embrace his youkai side. Life is not easy when you're Nurarihyon's grandson.

A special shown at the Jump Super Anime Tour 2010. It was later released as an extra accompanying Nurarihyon no Mago Blu-ray Box 1.

At first glance, Nura Rikuo seems like nothing more than a normal middle-schooler. In actual fact, he is grandson of Nurarihyon, master of a youkai clan. Having only recently resolved the hostilities between the Nura Clan and the Shikoku Yokai, Rikuo finds no rest as an ancient enemy of the Nura Clan, Haguromo-Gitsune, resurfaces. After 400 years of inactivity, Haguromo-Gitsune suddenly sweeps through Kyoto with overwhelming power.

[Source: AniDB]

The story begins at about 100 years after the disappearance of Otome Yamabuki, Rihan Nura's first wife. Rihan has finally pulled himself together and his life returns to normal. As the head of the Nura Clan, he's busy working on building a harmonious world for humans and youkais. One day, he sees Setsura being upset so he decides to cheer her up by taking the clan to go enjoy the hot spring where Setsura makes up her mind to tell Rihan that she met Otome once after she left him about 100 years ago. She tells him the message that Otome left for him and the truth is...?