Tōshirō Hitsugaya (日番谷 冬獅郎, Hitsugaya Tōshirō), who is known occasionally as Shiro (白, White) and Toshie (俊江), is a Shinigami, as well as the embodiment of a heavenly guardian that would be reincarnated every few centuries. Hitsugaya had a long and distinguished Shinigami career. He served two separate times as the 10th Division Captain in the Gotei 13 and later as a Captain in the Gotei Remnant, though he defected from the latter organization following its alliance with the Imawashī criminal organization. Inbetween his Captaincy stints in the 10th Division Hitsugaya was also affiliated with Kenji Hiroshi and the organization the latter created, where he worked in tandem with the Ryū Guard and the Visored.