The Kusanagi Ninja Clan (草なぎ忍者氏族 Kusanagi Ninja Shizoku?) is a secret society that operates out of Nara, Japan. Although their intentions and actions are often honorable, they have had to fight with the police force of Nara from time to time. The Kusanagi Ninja Clan assists Alec Langley during the events of Sapphire Episode II.