| Type: | ova |
| Director: | Kitarō Kōsaka |
| Producer: | Hiroshi Hirayama Jungo Maruta Masarou Toyoshima |
| Music: | Toshiyuki Honda |
| Studio: | Madhouse |
| Released: | 24 October 2007 |
| Runtime: | 54 minutes |
is a 2007 OVA by Madhouse, directed by Kitarō Kōsaka and featuring Ken'ichi Yoshida as animation director.
It is a sequel to . Kōsaka and Yoshida were animation supervisors on Studio Ghibli on numerous titles, including Spirited Away and Princess Mononoke. The Nasu universe is based on the manga Nasu created by Iou Kuroda.
The film won the best OVA award at the 7th Tokyo Anime Awards, held at the 2008 Tokyo International Anime Fair.[1]