The Ninjutsu Academy students return from summer break to hear that due to one of Komatsuda's mistakes, all their summer homework was mixed up. As a result Kisanta, who received an assignment meant for a sixth year, has gone missing after trying to sneak into Oomagatoki Castle to steal their lord's fundoshi. A group including Shinbei and Kirimaru is sent to rescue him, but since Oomagatoki is at war with Tasogaredoki Castle it might be a difficult mission.
| Directing | Masaya Fujimori | Director |
| Writing | Yoshio Urasawa | Writer |
| Writing | Soubee Amako | Novel |
| Sound | Akira Ookuma | Sound Director |
| Visual Effects | Yasuhiro Endou | Key Animation |
| Visual Effects | Takafumi Hori | Key Animation |
| Art | Kunio Kaneshima | Background Designer |
| Visual Effects | Kazunari Kume | Key Animation |
| Visual Effects | Eriko Murata | Color Designer |
| Art | Yuichiro Nakajima | Background Designer |
| Art | Masaru Sato | Background Designer |
| Visual Effects | Kenichi Shimizu | Key Animation |
| Visual Effects | Takako Uemura | Color Designer |
| Visual Effects | Kyoko Kametani | Key Animation |
| Visual Effects | Yuki Morikawa | Key Animation |
