Seven Ninja Swordsmen of the Mist (Rebirth)

The Seven Ninja Swordsmen of the Mist (霧の忍刀七人衆, Kiri no Shinobigatana Shichinin Shū) is an organisation consisting of only the greatest  of their generation that Kirigakure can produce. There can only be seven members at a time — hence the name. The swords of the Seven Swordsmen are passed down from generation to generation.