Isekai Harem Monogatari Anime Details and Episodes Naoki Oikawa was busily fapping away to his naughty porn mags when he was suddenly transported to a fantasy world filled with demon lords, monsters, and…… Series info Watch free DetailsFormatNovelStatusAiringSourceMangaCountryJapan GenresFantasyHentai TagsIsekaiFemale HaremElf RelatedIsekai Harem Monogatari (Source) RecommendationsYahari Dungeon ni Harem wo Motomeru no wa Machigatteiru.