Kraichhardt, who gained absurd strength through reincarnation in another world, rose to become the commander of the kingdom’s knight order. Celebrated as humanity’s strongest hero, his true motivation was far from noble—he became a knight solely to be “tormented” by the woman he fell in love with at first sight, the second princess Marie!? As a reward for defending the kingdom during wartime, he receives “special favors” from Marie. While Kraichhardt enjoys his fulfilling days in bliss, the sensible Marie reluctantly plays the role of a domineering “queen” to keep him tied to the kingdom, all the while suffering from stress. Meanwhile, powerful figures from surrounding nations also scheme to win Kraichhardt over for themselves…!?