Shinobazu

The are a group of ninjas who abandoned their village and serve no one. Most of them operate in the Land of Forests. They attacked various families and households, killing everyone to hide the blame and prevent survivors from seeking revenge.

This was prevented by Gantetsu's actions of rescuing the orphans and hiding them, taking care of them with his cut of the funds.

When Gantetsu had been caught, Naruto Uzumaki, Sakura Haruno, and Rock Lee were assigned to guard the prison transport he was in. A guard named Todoroki wanted revenge on Gantetsu for abducting his brother Akio while the other members had killed his family. The Shinobazu attacked the prison transport in order to get back the money he took with him. With help from Gantetsu and Todoroki, the other Shinobazu members were defeated by Naruto and Rock Lee.

Trivia

 * All three members have different abilities. Toki wears a drill device on his arm, Monju uses metal wires for his jutsu, and the leader Shura Sanjuro uses umbrella techniques. They are all killed by Naruto and Lee.