Hyōsube Nagare (流れひょうすべ, River Hyōsube) is the Head of the Nagare Family, one of the more prominent lower noble houses. Hyōsube is a powerful Shinigami who was among the first graduates of the Shinigami Academy under Shigekuni Yamamoto although Hyōsube was not promoted to Captaincy during his time in the Gotei 13. As a member of the Nagare family, Hyōsube was cursed with a gruesome appearance, which has led to him hiding behind a mask for his entire life.