Kekkon Yubiwa Monogatari

When Satou’s childhood friend Hime suddenly announces she’s moving far away, he’s devastated. But his despair turns to bewildered shock when he follows her through a mysterious portal and finds himself in a fantastical world of magic and monsters. As if that weren't enough, Hime isn't just any girl here — she's the fabled Princess of Light, destined to marry a hero and save the world from the looming threat of the Demon Lord. Thrust into an epic quest he never asked for, Satou quickly learns that his connection to Hime runs deeper than he ever imagined. With the fate of an entire realm resting on their shoulders, this ordinary boy must navigate ancient prophecies, powerful adversaries, and developing abilities to protect the girl he loves and confront a destiny far grander than anything he could have dreamed.

✦ AI-drafted summary