Ninpen Manmaru
Genres: Comedy
Type: TV, Episodes: 30
Aired: Jul 5, 1997 to Mar 28, 1998
Studio: Shin-Ei Animation
Source: Manga
Rating: G - All Ages
Synopsis:
Manmaru goes to ninja school at Nenga, where foxes and raccoons study the art of assassination under a bear ninja master. He is soon thrown in to local rivalry between the Nenga school, the Koga (monkeys), and the Iga (dogs), as well as facing temptations from the Dobe, a group of dropouts from the Nenga.

(Source: The Anime Encyclopedia)