The story talks about the relationship between a doctor and a member of an organization. Kairo violated the rules and is now being hunted by both police and 13CO. He revealed himself to a doctor named Frey and lived under her treatment. He has to live as a fugitive but his goal must continue that he tried to search for another clue. He discovered a new secret that arose his revenge, killing everyone he angers. He ended up pulling a gun to his lover. Would he kill her just like everybody or just torture her instead?