In a fantastical twist of fate, Luna, the fiery human princess, is on a quest to unite with the Guardian of the Realms—an ordinary man from Earth. Thrust into an isekai adventure, he marries in his world before embarking on a journey across three planets to find two other princesses. His mission: to vanquish the Shadow of the Veil and her dark minions. Having faced defeat in two alternate timelines, the question looms—will he triumph in this reality?