He is the nephew of Soryu Gundam, who came from the Abram Country. He was a troublemaker who could not be controlled, and there was no one in Abram who could match up to Kiryu, so the Hakuryuu Taitei sent him to Ark to train. He was excited to hear that there was someone in Ark who was strong enough to save the world, but he was bored because he could not find anyone who was worthy of his challenge, and then he met Godmaru and asked to fight him. When he learned of Godmaru's strength during the match, he came to adore him as an older brother, and to help Godmaru on his journey, he and Haganemaru headed to Gownland via a different route as a diversion. He was given the "Artifact of Fire" by Tengaio, and became one of the Five Touha Mushas. His special move, the Super Dragon Attack, which is unleashed from the Super Dragon stance, burns everything to ashes with a dragon-shaped explosion of flames.