Wikipedia
Ga-Rei
, also simply known as Ga-Rei or Ga-rei, is a supernatural action manga by . It has been serialized by Kadokawa Shoten in the magazine Monthly Shōnen Ace and collected in twelve tankōbon volumes. The English version was then released digitally on BookWalker on October 29, 2014. A prequel anime series, Ga-Rei: Zero, aired from October 5, 2008 to December 21, 2008, which details the backstory of key characters Kagura and Yomi.