Watch Isekai Harem Monogatari – Episode 4 English Subtitles

Summoned to a vibrant fantasy realm by a mysterious magazine, 16-year-old Naoki Oikawa wakes up to learn that the world is threatened by the revival of the Demon King.

He meets three skilled adventurers—the swordswoman Filia Shiora, the priestess Tiane Rutheim, and the elf Llusse—who reveal that sharing his unique life energy is the key to amplifying their powers.

Embracing his unexpected role, Naoki joins the trio on a high-stakes journey, combining battle with intense romantic bonds to save the realm.