The world is constantly at war, and the gods have grown tired of it. So, a hundred years ago, the gods decreed that mecha competitions would replace brutal warfare. However, the nation of mages, now reduced to a major civil engineering power, remains stubbornly old-fashioned and looks down on "competitive" warfare, causing talent to leave in droves. The kingdom is in decline... Recently, the king has had no choice but to set his sights on his troublesome seven-year-old princess, hoping to make her shoulder the burden of restoring the kingdom so he can retire and enjoy his old age sooner... (Note: this is an Anko story, a rare kind of dice-rolling novel.)