Puuko Review: Puuko is a Japanese Hentai site that is part of the All Japanese Pass network. When you join here you get to access 22 Japanese sex sites and they all have their own niche or theme. This one is all about artwork, comics, animations, full Hentai DVDs, Manga and Doujin, with some games thrown in. You will find more of some pieces of content than others, and I am not sure if the site is still adding content, it doesn't appear to be regular if they are, but there are 22 Japanese bonus sites.