Who is Raiga in Naruto?

Answer 1

In Anime that's based on manga, like Naruto or Bleach, they follow what the author of the manga writes. That way, they follow the story with each detail so if the author uses an old part, they don't have to worry about it. If they don't follow, their story falls apart. Fortunately, this also allows them to create fillers. Fillers are a series of episodes in the anime that use the original characters, make them behave like they normally would and send them out on their adventure. Fillers never contribute anything to the series, because when the filler arc is over, nothing changes that will affect the story. This buys the people working on the anime some time to make episodes that actually in the manga. The reason I'm telling you this, is because Raiga is not an actual character from the manga. In his arc, he was one of the seven swordsmen of the mist and a friend of crippled boy named Ranmaru. Although, Raiga dies by the end of the arc, Ranmaru lives and probably is still alive.