Tobikuma is a rough ninja from the Kawa clan he and Kaito were child hood enemies. Tobikuma loves to use the hammerhead shark in battle, while Kaito loves to use the dolphin in battle. They have always been rivals.
When Tobikuma betrayed the Lightning Village, he team up the Arashi and they helped start a civil war in the village. They called themselves the Six Thunder Clouds. Tobikuma became a POW when he was captured, is currently help captive in a large fish tank.