Missing-nin

is a ninja who left his village, often because he has committed criminal acts. The ninja village that he is from try to track him down and eliminate him. Kirigakure has a special hunter-nin taskforce whose only objective is killing traitorous ninja. The ninja organization Akatsuki is composed of ten S-class missing-nin except for Nagato and Konan who are the leaders of Amegakure. Most of the missing-nin throughout the series are antagonists.