Despair War pits relic firearms against modern armaments. A nuclear conflagration razed the planet, leaving a global empire that strips citizens of liberty. Though possession of any weapon is outlawed, an underground faction clandestinely opposes the regime, wielding antique guns preserved as curiosities. From these weapons arise the Kijuushi—spirits embodied in ancient arms. Radiant and regal, the 'Absolute Royal' stand as the sole bearers of hope for a shattered world. The narrative follows the Kijuushi"s daily existence: joy, sorrow, wonder, confusion, agony; they remain steadfast in unwavering devotion to battle. Their resolve is tested by the empire"s relentless surveillance and brutal suppression, yet they persist, hoping to ignite a spark of rebellion. What drives their struggle? Whom do they vow to defend?