Hiro Fusō (歩想朱炉 Fusou Hiro "Lit"; To Aid the Mulberry Tree, Scarlet Furnace) was once an extremely famous, later infamous, Shinigami of the primitive Gotei 13. He acted as the Third Captain of the 7th Division, and the Second Head of the illustrious Fusō Clan. Though perhaps considered an insane man, Hiro was also a man who brought the Gotei 13, and his clan, to the pinnacle of militant power thanks to his expeditions. Renowned as the Phantom Puppeteer (幻木偶使い Gendeku Tsukai), he was an extremely powerful Shinigami, who was thought to have possessed a level of power only the strongest could match.