Tenkei Iwafune

Previously known as Seigo Ōtori, he was king of the Grey clan and its only survivor after the Kagutsu Crater incident. While searching for surviving clansmen, he found Nagare Hisui in the rubble and helped save his life. He now lives with Nagare at the Green Clan headquarters, acts as the group's father figure and can fire his aura as powerful bullets with a gun.