Raikage

The is one of the five great Kage of the Naruto world and leader of Kumogakure. There have been four Raikage, though only three have been seen in the series. They are generally known as the strongest in the village. Throughout the history of Kumogakure the Raikage has always had a tag-team partner, who not only brings out the Raikage's full power, but defends them as well. The partner is given the name "B". The Raikage works inside a central blue structure inside Kumogakure.