Igano Kabamaru
Japanese title: 伊賀野カバ丸
Alternative titles: Iga no Kabamaru, Ninja Boy
Type: TV
Source: Manga
Episodes: 24
Status: Finished Airing
Aired: Oct 20, 1983 to Mar 29, 1984
Broadcast: Thursdays at 19:00 (JST)
Duration: 23 min per ep
Rating: PG-13 - Teens 13 or older
Studios: Group TAC
Producers: TOHO
Genres: Action, Adventure, Comedy, Romance
Themes: School
Demographics: Shoujo

After the death of Saizou, Kabamaru's horribly strict grandfather and Iga ninja teacher (sensei), an old lady, Ran Ookubo, claims that she received a letter from him asking her to take care of his grandson. So Kabamaru runs off with Lady Ookubo to the big city Tokyo to gorge on yakisoba, ramen, chow mein, and attend a regular school—which turns out to have weird quirks of its own. 

(Source: ANN)