The exiled Ohmi Crown Prince Matisa has been ordered to marry a woman named Miliana from the remote province of Daites, where he has no power or sway. This location provides the perfect refuge for the displaced royal, whose future is shrouded in uncertainty. However, Daites is not just a mere backwater. It's a thriving province with cutting-edge technology and wealth, largely thanks to Miliana's exceptional photographic memory. She has introduced advancements in technology, transportation, infrastructure, and weaponry, all inspired by her memories of modern-day Japan. Even more intriguingly, Miliana is a passionate advocate of "boys' love" culture, and is determined to see it embraced in everyday life. As war threatens to break out, Matisa and Miliana must work together to safeguard Daites and promote the acceptance of pure male-male love. These groundbreaking innovations could spell either the start of a new era of conflict or the dawn of a brighter future.