“Your happiness is my happiness.”
Anima has spent his days in pure bliss with his lovely wife and adorable, loving step-daughters. One day, he finds the commander of the Raiten Knights’ First Corps collapsed on the ground. After nursing her back to health, she informs Anima of a terrible beast terrorizing the country.
The beast she speaks of is so powerful it could threaten the peaceful life of his family, so Anima decides to head out and defeat the menace. Not only that, but he's even able to use the opportunity to go on a honeymoon with his loving wife and their two children, killing two birds with one stone. The girls love the idea of their first family trip, on which their bonds would only deepen.
However, once Anima arrives on the battlefield, he finds something he could never have anticipated! Follow the strongest Demon Lord in all the land as he enjoys the bliss of married life!