Kabamaru (hippo's mouth) is a reference to his insatiable appetite. After the death of his strict grandfather and ninja sensei, Kabamaru moves to Tokyo with one of his grandfather’s acquaintances. The plot deals mainly with Kabamaru adjusting to an urban lifestyle after spending a childhood in the mountains and how he finds himself caught up in the rivalry between two private schools.  Igano Kabamaru has been adapted to television and film.  In the 1st manga edition (October 1982 – September 1983) it ended when Kabamaru went back again with his grandfather &amp; Hayate to Iga village while in the 2nd manga edition (1998) the story about Kabamaru's son (Ko)-Kabamaru Igano after marrying his love interest Mai Ookubo. 

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

__Hobbies:__ Diving, horseback riding, skating, skiing

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The eponymous protagonist is a naive young ninja from the Iga province called Kagemaro (absolute shadow), nicknamed Kabamaru (hippo's mouth) for his insatiable appetite. After the death of his strict grandfather and ninja sensei, Kabamaru moves to Tokyo with one of his grandfather&rsquo;s acquaintances. The plot deals mainly with Kabamaru adjusting to an urban lifestyle after spending a childhood in the mountains and how he finds himself caught up in the rivalry between two private schools.<br><br>(Source: Wikipedia)

Kagemaru Igano