Kiryu Masuda, a war veteran who was once cast aside to preserve the nation’s image, is summoned back—not to fight, but to train an elite young unit composed of the children of nobles and high-ranking officials who will be sent to the frontline against Monsters.

Armed with bitter experience and a truth long buried by the state, Kiryu realizes that his duty is not merely to teach them how to fight, but to break the cycle of sacrifice repeatedly enforced by the very system that once destroyed his life.

Caught between the looming threat of Monsters and relentless political pressure, Kiryu must choose: become a tool of the state once more, or risk everything to save his trainees from the same fate that once shattered him.