Ninja Hattori Wiki
Kemumaki Kemuzou



Also known as

Amara (Hindi dub)




Kagechiyo, Yumeko

Permanent residence

Kemuzou Kemumaki's flat

First appearance

The New Student

Voiced by

Kaneta Kimotsuki


Kanzo Hattori, Kenichi, Shinzo, Shishimaru

Kemumaki Kemuzou is a Koga Ninja and the main antagonist of Ninja Hattori-kun. He lives in a block of flats with his cat Kagechiyo, and happens to be the opposite of Kenichi Mitsuba. He loves Yumeko Kawai, but the reason he dislikes Kenichi is because he loves her too. However, he is scared of some of Hattori's ninja techniques, and can easily be intimidated by him. Kemumaki comes from the Koga clan, and the Iga and Koga clan are sworn enemies. He does have a soft side though. In his first appearance, it is revealed that he is a ninja.

Kemumaki in the 2012 anime

Physical appearance[]

Kemumaki is short, a little plump, he is medium weight and has black, tufty hair. He has freckles on his cheeks. He wears green ninja robes with a white belt and a green loincloth under his trousers, while his casual outfit consists of a blue jacket with gold buttons and a slightly lighter blue pair of trousers.


Kemumaki as depicted in the manga, causing trouble

Kemumaki is a selfish Koga-ninja who cons a lot of people, but his biggest ambition is to win Yumeko's heart and make Kenichi and Hattori lose. However, he does have a softer side in which he helps Hattori, Kenichi, Shinzo and Shishimaru, but he mostly revels in making them suffer. He also can be overbearing towards his cat Kagechiyo(Kiyo in English Dub).



Kemumaki is mostly respected by his cat Kagechiyo. Kemumaki, in turn, is kind to him, but there are a few episodes where Kagechiyo complains about his master's strictness.

Kemumaki (in his normal outfit) with Kagechiyo

Hattori Kanzo[]

Hattori and Kemumaki are at constant loggerheads with each other. However, they are seen helping each other sometimes, such as when they rescued Kagechiyo from a group of dolphins.

Shinzo and Shishimaru[]

Shinzo and Shishimaru hate Kemumaki just as Hattori does. They, along with Kenichi, are combatants in the duels commanded by the two ninjas. However, it is revealed that Kemumaki did teach Shinzo how to walk on water once.

Kenichi Mitsuba[]

Kenichi is Kemumaki’s victim, as they are both rivals.

Yumeko Kawai[]

Yumeko is smitten with Kemumaki in attempting to lure him as his girlfriend and he promises to do wondrous things for her. However, Yumeko sometimes finds out that Kemumaki does wrong just to get there and let their best friend Kenichi goes into trouble and admonishes him for doing so. But in the end, it turns out that his bad luck that Kenichi falls for Yumeko.

Mr. and Mrs. Mitsuba[]

Mr. and Mrs. Mitsuba, unlike their son, do not see Kemumaki for his true character. Once, Mrs Mitsuba hired Kemumaki to keep an eye on things while Hattori was away, and things ended in disaster.


  • Duelling: Kemumaki is a skilled duellist and constantly duels with Hattori, with his cat Kagechiyo as his combatant.
  • Disguise: Kemumaki is known for disguising himself as people to cause trouble, paticularly as Hattori, Kenichi or Yumeko. He even posed as Kenichi's older brother once.
  • Ninja Techniques: Kemumaki is skilled at performing ninja techniques, but performs them mainly to cause trouble.


  • "It's very nice to meet you all." (first line)
  • "Barkin' dogs don't bite! I'll get you!" (to Kenichi)
  • "Yaai-yaai-yaai!" (Hindi catchphrase).