Hiroshi is a former soldier of Kamakiri along with Yūsuke and Yūji. After Hōgen's defeat, the trio went to the village of Higashinaruse in order to avoid the Ōu army. They pretended to be Ōu's soldiers and forced pet dogs to give them food. However, one pet dog called Jirō recognized them, as he had fought in the battle against Hōgen. The gang killed him slowly as a warning for others and started to guard the pet dogs to make sure they won't tell Ōu's army about them. Weed ordered Hiroshi to leave and he did. He was never seen again.