Isekai Harem Monogatari Episode 4, titled "A Wild Fivesome Harem Orgy ♡ Our Fight Has Only Just Begun!", serves as the 2020 OVA finale to the adult fantasy series featuring Naoki Oikawa. Produced by Studio Majin, this final episode concludes the story of the summoned hero empowering female warriors through specific, unique methods to fight the Evil Demon King. For more details, visit TMDB . Isekai Harem Monogatari (2020) - TMDB