Tenkei Iwafune

Previously known as Seigo Ōtori, the king of the Grey clan, the sixth clan, which was completely annihilated in the Kagutsu Crater incident leaving him the only survivor. While searching for surviving clansman he finds Nagare Hisui who becomes the Green King in the rubble and helps to save his life. He now lives with Nagare in the Green Clan's headquarters and acts as the father of the group. Uses a gun to shoot his aura as powerful bullets