Koko wa Ore ni Makasete Saki ni Ike to Itte kara 10-nen ga Tattara Densetsu ni Natteita.

Ten years of demon-slaying later, sorcerer Luck wakes up looking like he skipped puberty. Victory tastes bitter when you’re back at square one, literally. Reuniting with friends who thought he was dead (oops), Luck just wants to chill. But the universe, ever the prankster, has other ideas.