The ninku is a clan of extinct ninjas who command esoteric and powerful techniques, hence a lot of other groups are constantly trying to steal their techniques to take over the country. Their primary target is Fusuke, a weird looking kid but one of the most powerful Ninku ninja. Fusuke, together with other Ninku ninja with different specialties must fight those threat that caused the downfall of the Ninku clan.
This was shown as part of the "Jump Super Anime Tour" of October 1994, prior to the Ninku TV series.
They have the reputation of being the top martial arts team in the world. They have combat techniques which can control the very elements. They have a small penguin. They are the Ninku, full of martial art prowess, low on brain power, and totally devoid of the respect they deserve.
