Lyon Ryū (リヨンリュウ, Ryū Lyon) is a powerful Arrancar, even before he was granted further power. He also happens to be the brother of Saburo Ryū, though not by blood relation. A member of Averian's Army, Lyon serves Averian for the simple reason his brother does, with him holding particularly no loyalty towards the one to whom he swears allegiance. A well-spring of knowledge, Lyon is a gifted individual and one of the stronger members of Averian's army, in which he serves as a general. He met his death at the hands of Akira Nakamura whilst saving Saburo from the intended attack.