Kaettekita Motoyuusha Manga
El regreso del antiguo héroe / Kaette Kita Moto Yuusha / Katte Kita Motoyuusha / Return of the Former Hero / 原勇者归来 / 帰ってきた元勇者

After being summoned to another world, a hero spends three years fighting a war and defeats the Demon King. Instead of being allowed to remain, he is forcibly sent back to Earth. The hero longs for the magic, elves, beastfolk, dwarves, and demons of the other world—and for the harem he had hoped to build there. With no magic on Earth and that dream out of reach, he returns to the other world, determined to make a life there without being sent back again.