Suuji de Sukuu! Jakushou Kokka

As tensions escalate with a neighboring nation and the threat of imminent war looms over the horizon, Princess Soalla faces a dire crisis. Her homeland, the small kingdom of Favell, lacks the military strength to withstand an invasion. To make matters worse, the king is bedridden, leaving the young princess desperate for guidance. Yet the royal retainers she turns to offer no practical solutions, clinging instead to outdated ideals of battlefield glory. With no one capable of devising a concrete strategy to protect their people, Soalla begins to fear that her kingdom's destruction is inevitable. Just as hope seems entirely lost, a mysterious figure named Naoki appears before the princess. Far from an ordinary man, he is a legendary "magician" destined to leave his mark on history. He wields the exact power Soalla has been desperately seeking—a unique ability that could turn the tide against their enemies. With his arrival, the princess finally finds a chance to defy fate and save her fragile nation from ruin.