AD2072, fearsome monsters, known as "Aragami" (Bewildered Gods), appeared on Earth and start preying on humans. Human population had decreased down to 1/100 in just a few years, and the world is about to come to an end. However, there's one group of people who battles with these fierce monsters, using the biological weapon, known as the "Jinki" (God Device). These people are called as "G.E." (God Eaters). This manga revolves around one of the God Eaters, Silva, and his conquest to bring back the hope of humanity...
Hasumi Seiji, who teaches English at a high school, is affectionately known as "Hasumin" by his students. He's popular, good-looking, kind to everyone, and efficient at teaching and solving problems. But no one knows that he's actually a manipulative serial killer.
Enma, Yuki-hime, and Kapaeru are demon hunters from another plane who have come to present day Japan to exterminate demons who possess humans and cause them to commit murder.