i read it til volume 8,definitely a masterpiece
yamamoto hideo is definitely an ace psychological seinen mangaka (also behind the sick koroshiya ichi)
hell's yeah volume 9 have been released
grab it in mangatraders
i really love this manga.
I've been struggling with the hungarian translation since 2 years (and I'm at volume two only), but as the manga goes on, it becomes more and more strange... and i am really curious about how Yamamoto will end it.
at least i hope the sellings of the tankubons are high, so it won't be cancelled.