Isekai has been all the rage these last few years, it seems. It’s hard to take one step into the world of new manga or anime without plopping heel-first into a huge, steaming pile of new stories about that same old lonesome otaku boy who gets transported into another world of far-flung fantasy. It’s a genre that still takes the world of anime by storm, with series like Sword Art Online and The Rising of the Shield Hero leading the pack of modern isekai smash hits. Yet, the world of hentai seems to have left this genre untapped. Unless you’re reading the fiftieth doujin about Kirito and Asuna, where are all of the isekai hentai stories? Thanks to a classic Nagashima Chousuke story of alternate worlds being published by Fakku, we know the answer.
Right out of the gate, The Otaku in 10,000 B.C. throws us into the middle of intense, pre-historic action. We saw a tall, busty woman desperately running from a pack of savage-looking cavemen. As she trips and falls, however, her breasts come flying out of her flimsy top, and the pursuers don’t hesitate to take advantage of her slip-up. They start to have their way with her and make use of her entire body, but the woman surprisingly seems to be enjoying it. Soon after the ravaging begins, though, a group of warriors from the woman’s tribe arrives to rescue her, led by another tall and buxom beauty. As the clan murder the would-be rapists, eliminate a nearby sabertooth and leave the scene of the action, we pull back to see that there was someone watching all of this unfold.
And that certain someone was a regular glasses-wearing nerd from modern-day Japan. While our confused protagonist can’t remember how he got to this pre-historic world, he can vividly remember what happened just before arriving here. In Akihabara, he met up with his then-girlfriend who informed him that they had to break up because of his shameless otaku ways. Wounded and bleeding, all he can think of now is the fact that she never even let him have sex with her. Just then, fate blesses him by having the buxom blonde beauty from earlier appear in front of him. He immediately decides to have his way with her so he can at least have sex before he dies, but when she ends up loving the caring and intimate way he treats her body, she decides to help him blend into pre-historic society so he can come back to her tribe peacefully.
Initially, The Otaku in 10,000 B.C. seems like it’ll simply be a cheesy, straight-laced story of sex in pre-historic times. As this opening chapter proves, though, there’s a downright hilarious twinge of comedy to the story that really elevates the quality of the entire experience. Our isekai hero, Ota, has hilarious facial reactions to the insane sights he sees in this wild pre-historic world. The crux of the story is that these pre-historic people have no knowledge of modern sexual practices or positions, so Ota sharing his knowledge of these things blows their minds. The manga makes a big deal of us witnessing the very first use of the missionary position by humanity, and it’s just an absurd and over-the-top thing that adds some much-needed levity to the otherwise generic story. Even better is the running gag that the pre-historic people are speaking an unintelligible caveman language, so after the buxom beauty who saves Ota explains something to him, we cut to his point of view where she’s just enthusiastically saying “ugga ugg ugga!” to him.
While the comedy in The Otaku in 10,000 B.C. is solid, the artwork is a little flawed. I can certainly appreciate tall and busty babes, and that’s what this entire volume is about. Every woman is a slender MILF beauty with enormous breasts, but they’re all drawn like artificial porn-stars. Their tall and thin Barbie bodies are contrasted by massive, balloon-shaped breasts. They’re big, sure, but they also lack any kind of dynamic shape or volume during sex scenes. Everyone has a rigid kind of nature to their bodies as well, and while that helps amplify the comedic effect of certain scenes, it makes the sexual parts of the book fall flat a bit.
Disappointingly, The Otaku in 10,000 B.C. is also completely censored. Rather than the usual uncensored artwork Fakku uses in their book releases that let us see every inch of sexual anatomy unobscured, dicks and vaginas in The Otaku in 10,000 B.C. are covered by solid blocks of white. After spending so much time reading and reviewing uncensored Fakku books, it was a little distracting to see these censors in this book. On top of that, though, considering the appeal of these Fakku releases is usually the uncensored art, it seems disingenuous to release a book that’s still completely censored. There’s also a disappoint lack of extras or colored pages in this volume. There are a few pages in the middle of the book that certainly look like colored-pages scanned into black & white, making me question why Fakku couldn’t obtain the original colored material. As it stands, only the front and back covers of The Otaku in 10,000 B.C. are colored, and while the shading and skin-tones are well-blended, the illustrations themselves are still a bit flat.
