A child soldier in the Third Group affiliated with CGS, a Martian private security firm. He is the leader of the Human Debris sold to CGS, and has a sturdy body and mind to match. Blunt and unfriendly, he tends to favor keeping to himself and training in silence. In his younger days, he used to sail the stars with his family in a merchant ship fleet. Unfortunately, his parents were killed in a pirate raid, and he was separated from his younger brother Masahiro and sold as Human Debris. He became free when Orga Itsuka took over CGS, only to turn around and volunteer to join Tekkadan. He has undergone Alaya-Vijnana System surgery twice, and is the second-most highly-skilled Mobile Suit pilot in Tekkadan, after Mikazuki Augus.