The Enchained Spiritual Beast Ga-Rei(喰霊Ga-rei), also simply known as Ga-rei, is supernatural action manga by Hajime Segawa(瀬川 はじめSegawa Hajime). It has been serialized by Kadokawa Shoten in the magazine Monthly Shōnen Ace and collected in twelve tankōbon volumes. A prequel anime series, Ga-Rei: Zero, aired from October 5, 2008 to December 21, 2008 which details the backstory of the main heroines, Kagura and Yomi.