Naruto Manga Chapter 508 A Death Befitting A Shinobi is already out. Before Kisame give any information, he decide to bites his own tongue

Before nine tailed beast were appeared, there was story behind the appearance of them.

Name : E Gender : Male Occupation : Raikage and Supreme Leader of the Shinobi Alliance Affiliation : Kumogakure Ninja Rank : Kage Clan : Yotsuki clan Family : Killer Bee (Younger brother) Nature Type : Lightning Jutsu : * Double Lariat * Elbow * Guillotine Drop * Lariat * Liger Bomb * Lightning Oppression Horizontal * Lightning Release Armor E is the Fourth Raikage (Yondaime Raikage) and the leader of Kumogakure.