Chou Ryuu Jin is a fictional Brave Robot from Yuusha-Ou GaoGaiGar, formed by combining the transforming machines Drill Gao, Stealth Gao, and Liner Gao. In the series, he serves as one of the main support and combat mecha allied with Gai Shishioh and the GGG team. He specializes in powerful drills and high-speed mobility, often acting as a dependable frontline fighter and rescue unit. Chou Ryuu Jin is notable for his heroic personality, teamwork, and major role in the series’ mecha battles.