Nintama Rantarou: Ninjutsu Gakuen to Nazo no Onna - Kore wa Jiken da yo! no Dan (Series)

Kirimaru Settsuno

Kirimaru Settsuno is a 10-year-old, 1st-year student at Ninjutsu Academy, known for his street smarts and focus on money.

Ana Laín

Hansuke Doi

This information is not available in the provided text.

Toshihiko Seki

Rantarou Inadera

Rantarou Inadera is the older brother of Inaba Rinne and works as a gyrozetter mechanic.

Minami Takayama

Shinbei Fukutomi

Shichibei, whose real name is Shinbei Fukutomi, is Kuriko's former boyfriend.

Teiyuu Ichiryuusai

HemuHemu

Shizuno is a young, kind Dwarf Oni herbalist who lives in the woods.

Bin Shimada

Rikichi Yamada

Rikichi Yamada is the skilled freelance ninja son of Denzou Yamada.

Kousuke Okano

Tomomi

Tomomi is a student residing in Misora.

Hiroko Emori

Kazuma Santanda

A short biography for Kazuma Santanda is not available based on the provided text.

Hiro Shimono

Saburouji Ikeda

Sawada is the main antagonist of the series.

Shinobu Adachi

Sonnamon Moroizumi

Sumomone Moroizumi is the vocalist and guitarist of the band REIJINGSIGNAL.

Bin Shimada

Takiyashamaru Tairano

Takamaru is a falcon yōkai who serves as a retainer.

Wataru Takagi

Yuki

This information cannot be extracted from the provided text.

Mariko Kouda

Danzou Katou

Danzou Katou is a 10-year-old student at the Ninjutsu Academy, belonging to the 1st-year Ha class and the Accounting Committee.

Hiroko Emori

Denzou Yamada

Denzou Yamada is a recurring background character in various Shigeru Mizuki works, most notably GeGeGe no Kitarō and Akuma-kun.

Akio Ootsuka

Fushikizou Tsurumachi

Fushikizou Tsurumachi is a 10-year-old first-year student at Ninjutsu Academy, known for his love of mysteries and his membership in the Health Committee.

Mayumi Oota