Title: I Am a Hero
Japanese Title: アイアムアヒーロー
Edition: Paperback
Author(s): Hanazawa, Kengo
The insecure Hideo Suzuki, 35, is forced to work as a manga artist's assistant after his own series fails due to low sales. While struggling to survive a mundane life plagued by hallucinations, he realizes that his relationship with his girlfriend isn't going so well, suspecting she might be cheating on him with her ex-boyfriend. However, after confronting her about the possible infidelity, Hideo feels bad about his interrogation and decides to visit her to apologize.
But the world as he knows it is about to be turned upside down. At first, it doesn't seem like much has changed, but he soon realizes that society has become a living nightmare, as the horrible reality of what's happening around him finally begins to sink in.