Goseiji

 (五セージ, lit. Five Sages), is a group of consisting of, as the name states, "Five Sages". This specific group is used to bring order to the world, when it's in havoc.

Background
The five gathered knowing that with other shinobi on the loose, the world could once again sink into everlasting war. The founder of the group, Daiki Shiga, was Sigma's sensei, and already stated to have thought of this group. Each member of the group represents a certain piece of life.