Ryou and his brother, Takashi, are identical in appearance with only the length of their being different. Ryou was one of the few survivors of Earth who was later captured by the Galra Empire. He first appears after Princess Amue falls into a pit in an attempted execution by Sincline. Afterwards, Ryou helps Amue escape the Galra planet after Sincline's attempts to draw her out by executing her people. Ryou urged her to accept and honor her people's self-sacrifice on behalf of her survival and escape through a Galra ship to land on Planet Heracles where he meets the rest of the Golion team.