Yomi Isayama

Yomi Isayama(諫山 黄泉 Isayama Yomi) is the deuteragonist (and eventual main antagonist) of Ga-Rei Zero and a major antagonist (and later the tritagonist) in Ga-Rei. The close friend and sister-figure of Kagura Tsuchimiya, Yomi is an orphan adopted by the Isayama family and raised as one of its own, groomed to be the clan's heir from a young age and bestowed with its family sword, Shishio. Yomi tragically fell to darkness after being corrupted by the power of the Bane Stone (sesshōseki), and her descent into evil is the main focus of the anime series.