HyouRyuu (氷竜) is one of the Gao Machines in Yuusha-Ou GaoGaiGar, serving as the ice-themed member of the team. He is a calm, composed, and reliable fighter who specializes in freezing attacks and support operations. Along with EnRyuu, he forms the pair that combines into the support robot HyouRyuu and EnRyuu, and later contributes to the series’ larger combination systems. He plays an important role in aiding GaiGar and the other Braves during battles against the Zonder and other threats.