yep the story might be already dead. i dont sense any future (not that i did any analysis on it or anything) on this series. the lack of motivation its fan had also becoming less and less. i dont think there would be any vol 6 on this. vol 5 be one thing but if the author already struggling with it, looking at the gap between releases, the hope become so dwindling that i will be surprise if author does proves me wrong. but that just my view on it, so take it with a bit of salt.