Ossan, Yuusha to Maou wo Hirou

After being forced into retirement by the adventurer’s guild, an old warrior decides to live out his remaining days in peace back in his hometown. But fate has other plans. On his journey home, he discovers two abandoned infants—one, a human child marked with the crest of a Hero; the other, a demon baby bearing the seal of the Demon King. With both future rivals in his care, the old man's quiet life takes a dramatic turn. Thus begins the tale of a retired adventurer raising both the Hero and the Demon King.