Mio is serious and gentle, and writes in a diary as a hobby. She is on her tenth Term and has about three more months left to live but she lives thank to M and She is an off-seer who was initially working for Colony Gamma's arms expansion force. Mio is an Agnian human with Flesh Eater Blade and Gormotti traits.Mio is a soldier of Agnus and from Colony Gamma along with Sena and Taion and uses noah weapon Veiled Sword or lucky number 7