Kemuzou Kemumaki

Kemuzou Kemumaki is is the antagonist of Ninja Hattori-kun, and is a Koga - Ninja. He's Hattori's arch-rival. He lives in a condominium with his cat Kagechiyo, and happens to be the opposite of Kenichi. He loves Yumeko, but the reason why 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. He does have a soft side though.