Ep. 1937: Rantarou and friends investigate suspicious Dokutake ninjas while fishing at Daisan Kyoueimaru's request.
Aired on June 16, 2016

1937
Acting on the Headmaster's instructions, Rantarou, Kirimaru, and Shinbei travel to Daisan Kyoueimaru's residence. During a fishing trip in the open sea, they receive assistance from Onigumaru. While engaged in this activity, the group observes Dokutake ninjas acting in a notably suspicious manner. This encounter prompts the characters to pay close attention to the ninja activities occurring nearby during their time at the location.
Episodes
- Ep. 1933 · Lord Kino Kojirou Taketaka Disguises Himself to Investigate Castle Reputation
- Ep. 1934 · The Headmaster Assigns Missions to All Committees
- Ep. 1935 · Health Committee Investigates Akou Roushi's Treasure at His Retreat
- Ep. 1936 · Rantarou discovers Danzou writing while the committee visits Tada Douzen.
- 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.