The MC could transform into a power ranger kind of thing ( one the helmet and spandex crew). the MC was the only one who can transform in other words he was the sole hero. he would be the hero for 23 hours straight. It showed him being completely unappreciated and at the end he snapped and told the monsters they could go kill everybody and he won't stop them. He went back to being a hero after a girl said she would become his lover if he rescued her. this was a oneshot . I just want to read it again