Kōji Majima (真島 浩二 Majima Kōji) is a man who came from a line of doctors, befriended Mana and idolized Kino. When Ryou was injured after a fight with Another Agito, Koji was told by Tetsuya/Shouichi to give Ryo his Agito seed in order to save his life. As he gave up his power, Ryo was not only completely healed, but was able to access Exceed Gills. He is the only surviving member of the Akatsuki by the end of the series.