Manga
Finished
Oct 7, 2013 to Jan 7, 2016
27 chapters, 3 volumes
Unlucky at love and with nothing going his way, Oota's world is turned over when he's magically transported into a land that time forgot. Surrounded by nurturing, big breasted cavewomen with seductive banging bodies, Oota's going to have his hands full teaching them a bunch of firsts in the history of sex! (Source: FAKKU)[Written by MAL Rewrite]
Kigenzen 10000-nen no Ota, Kigenzen 1-mannen no Otaku, 紀元前1万年のオタ, The Otaku in 10000 B.C.
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