The main heroine of the Spectral Force series, known as the Exploding Godhand (爆炎の申し子) due to her fire-related powers. She is a half-mazoku, born between a human mother and a mazoku overlord father, but she supports the mazoku side due to her distaste for humans - they were responsible for cutting off her left arm when she was a child, which was replaced with a mechanical claw. Hiro also wields the Gate of Heaven, a scythe that can reap souls.