An Astral who once oversaw the Amahtgrande Skydom. Among Astral engineers, Chiyou was the foremost weaponsmith. He believes the use of armaments to be the mark of civilization, and views unarmed combat as primitive and bestial. During the Astral invasion, he was captivated by Octavia's technical prowess and forged a peace treaty with the people of Amahtgrande on equal terms. As the creator of the Seven Luminary Knights' armor, he continues to maintain and reforge their equipment—consequently aiding countless others without them realizing it.
