Settsuno, Kirimaru

摂津のきり丸

An orphan who joined the Ninjutsu Academy to earn a living as a ninja, he has been best friends with Rantarou and Shinbei since meeting them during enrollment. Because he lost his family in a war before the series began, he has supported himself through various part-time jobs. Joining the academy did not change this; he continues to work multiple side jobs and has earned the nickname "Genius Part-timer". He possesses a sharp business mind, an even stronger love for money, and takes great pride in calling himself an extreme skinflint. He can also detect the sound of dropped coins from great distances and will immediately rush toward the source whenever he hears it.
Since entering the academy, he has stayed with Doi-sensei during school holidays.