The Isekai Returnee is Too OP for the Modern World summary: Daiki Morishita was just a typical high school student until he was transported to a fantastical realm where he managed to vanquish the Demon King. After completing his quest, he yearned for the taste of his mother's delicious home-cooked meals. Upon returning to the real world, he was surprised to find that he had brought back an extraordinary item from the realm he had visited.