During their discussion of a sensitive investigation A, the Fourth Raikage, and his subordinates are ambushed by a cloaked intruder. As the Kumogakure leader repels the assault, he is shocked to discover that the culprit is Naruto Uzumaki! However, the assassination attempt is not the only crime attributed to the young ninja, who vigorously denies the accusations. To avoid a diplomatic conflict, Tsunade forcibly sends him to Kusagakure's Houzuki Castle—a maximum-security penitentiary dedicated to ninja criminals—until the situation is resolved. Despite his powers being immediately suppressed by Mui, the prison's warden who possesses the ability to seal chakra, Naruto recklessly engages in futile escape attempts. But with the help of two fellow inmates, he realizes that there is more to this legendary detention facility than meets the eye. Uncovering a terrible secret, the trio embarks on a dangerous operation that may be Naruto's only chance to break free and prove his innocence.

Natsume Yuujinchou San follows Takashi Natsume, a boy who is able to see youkai. Natsume and his bodyguard Madara, nicknamed Nyanko-sensei, continue on their quest to release youkai from their contracts in the Book of Friends. Natsume comes to terms with his ability to see youkai and stops thinking of it as a curse. As he spends more time with his human and youkai friends, he realizes how much he values them both and decides he doesn't have to choose between the spirit and human worlds to be happy.

Koyama Yuzu is running an antique shop. Mayu, a cat god (nekogami), is living off Yuzu and leads an idle life playing games. Lots of other gods visit Mayu and enjoy merrymaking. (Source: ANN)

Short episodes included in the Nekogami Yoayorozu Blu-ray and DVD volumes.