This World is full of demons, that endanger human lives. It is the job of the exorcists to battle them and protect civilians. But demonpowers are strong and so diverse, that humanity needs alot of different abilities to fight back. Heros are forced to take the help from criminals, to have enough power against the demonic creatures. Lyro geht's bullied in school. She doesn't know what to do anymore, so she decides to go to an Exorcist-Academy, to escape her daily school life. But she doesn't knows anything about fighting, and the other students seem so strong...