is a Japanese manga series written and illustrated by Daisuke Moriyama. It was serialized by Shōnen Gahosha's seinen manga magazine Young King OURs from April 2005 to May 2014, with its chapters collected in thirteen tankōbon volumes. The story follows a group of humans who combat monstrous creatures that spread around by using cell-phone signals. Plot At the start of the series, high-schooler Riku Amami receives a cellphone picture from his dead step sister Amane with a hospital in the background. When he visits the said building, he is attacked by electromagnetic monsters called Kanshu, which travel and reproduce using cellphone signals: if a human hears his cellphone giving off an eerie static sound, his body is then gruesomely converted into a Kanshu or suffers irreversible infection. Riku is saved by two warriors, Rena and Youhei, who wield Jinki weapons designed to destroy Kanshu. During the battle, however, Riku finds a cocoon, out of which hatches a toddler looking exactly like Riku's dead step sister Amane. As the situation goes downhill, Riku ends up receiving his own Jinki and gets drawn into the shadowy organization that fights the Kanshu. Characters Riku is a high-school student who lives with his father (absent for most of the story) and stepmother, Shizuru. He was in love with Shizuru's younger sister, Amane, but she is presumed dead two years ago in a fire. After sustaining, at the start of the series, a fatal wound from a Kanshu, Neene turns Riku into a special Kanshu that can retain his own consciousness as long as he has a Jinki. His Jinki, gained through Youhei's sacrifice, takes the form of a chainsaw-like sword with trigger grip. Despite his desperate efforts to keep Neene out of harm's way and public knowledge, F.L.A.G eventually sets its sights on the young hybrid and puts Riku under custody, only for the two of them to escape with the director as hostage. After the source of infection take Neene he has disappeared. He reappeared in the battle of the rubble tower only to disappear for three months in the aftermath, reappearing in a cocoon of light. In his Jinki form, Riku retains his white hair and markings from his kanshu transformation; due to multiple sightings, the online community has started to call "Suraga". He is an extremely strong Jinki user, able to damage Kagomari while others can not touch them. Neene is