Hiiro is an ogre who appears in Tensei shitara Slime Datta Ken, later becoming one of the key figures connected to the Jura Tempest Federation. He is the older brother of Benimaru and is known for his strong sense of duty, loyalty, and calm leadership. Hiiro plays an important supporting role in the story, especially in the development of the ogre and kijin characters. He is a skilled warrior and a dependable ally who helps strengthen Tempest’s military and political ties.