Ep. 1940: Kirimaru and friends pursue a secret letter while evading ninjas and thieves.
Aired on June 21, 2016

1940
Unforeseen circumstances cause Kirimaru and his companions to obtain a confidential message, prompting them to flee from pursuing ninjas and thieves. The narrative features various ninja groups, including Hoteitake, Kusaurabenitake, and Suppoutake. Doi sensei makes an appearance and joins Kirimaru and his two friends as they travel toward the forest. This sequence highlights the group's efforts to secure the document while navigating the dangers posed by their pursuers in the wild. The events underscore the ongoing tension between the protagonists and the antagonistic forces seeking the same information, leading the trio deeper into the woods under the guidance of their mentor.
Episodes
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- Ep. 1937 · Rantarou and friends investigate suspicious Dokutake ninjas while fishing at Daisan Kyoueimaru's request.
- Ep. 1938 · Makinosuke visits Ninjutsu Academy seeking plums gifted to the Headmaster
- Ep. 1939 · Kirimaru Buries Savings Near Headless Jizou as Suspicious Figures Also Hide Items
- Ep. 1940 · Kirimaru and friends pursue a secret letter while evading ninjas and thieves.
- Ep. 1941 · The group enters the forest training area filled with hidden traps.
- Ep. 1942 · Shousei and Zatto Konnamon encounter each other's intense killing intent in the forest
- Ep. 1943 · Rantarou and friends deliver medicine to Hyougo Daisankyoueimaru and enjoy the Pirates Crew hot pot
- Ep. 1944 · Sixth-year students Shioe, Nakazaike, and Nanamatsu assist Kirimaru with brush-making duties.