, is a Japanese manga series written and illustrated by Hajime Segawa. It has been serialized by Kadokawa Shoten in the magazine Shōnen Ace from 2005 to 2010 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. Plot Kensuke Nimura is just your average high school student—except for the fact that he can see spirits. This ability generally hinders him more than it helps him, especially in trying to get a girlfriend. However, everything changes one day when he encounters Kagura Tsuchimiya while being pursued by evil spirits. They accidentally kiss and manage to destroy the source of energy that is drawing the evil spirits. A few days later, Kagura transfers into Kensuke's class, much to his surprise. Kagura is an agent of a government agency that secretly defends the public from supernatural enemies. She wields a Ga-rei, a "spirit devourer," named Byakuei that she uses to fight. Kensuke's spiritual awareness and his attraction to Kagura compels him to follow her to the agency, where he is recruited to fight the supernatural. Their first enemy is Yomi Isayama, Kagura's former best friend, now an evil spirit due to a stone known as a sesshouseki embedded in her forehead. Also introduced is another old friend, the perverted Izuna Noriyuki. Yomi tries to release an ancient immortal demon sealed under Tokyo. The Agency manage to stop her after a long battle, resealing the demon and putting Yomi to rest in the process. A mysterious boy removes her sesshouseki and disappears. The next story arc concerns the re-emergence of the Juugondō organization and its heir, Shizuru Imawano. She encounters and alternatively threatens and flirts with Kensuke, angering Kagura. Soon, a contest begins between her and Kagura as to who can collect more sesshōseki, with Kensuke—and the Kyūbi-kitsune (or nine-tailed fox)—as the prize. The pressure is building as Kagura starts losing control of Byakuei and the Juugondō arrive in full force. Shockingly, Shizuru's long-lost sister Setsuna arrives, kills her father and takes over the Juugondō. She attacks and demolishes the Agency and the government try to distance themselves from the Agency for fear of revealing secrets to the public. Kagura, Kensuke, Kyouko and Iwahata survive and meet Izuna and