A boy who lives in the space colony, Nora. The Asuno family was a family of engineers whose ancestor is the legendary Mobile Suit blacksmith known to have developed the savior, Gundam. Flit was entrusted with the AGE Device by his mother and cooperated with the Earth Federation Forces to develop Gundam during his academic years. Flit is an excellent engineer who also demonstrated his talent as a Mobile Suit pilot. During a fierce battle, he awakes the X region, a part of the human brain, awakening him as an X-Rounder that increases prediction ability and reaction speed. He is a friendly and kind boy, but a perfectionist and selfish side of him makes it hard to get along with people around him. He has a strong hatred for the UE, who took a peaceful life away from him.