A child soldier with great skill realizes he is a shell of a being, devoid of purpose and will. Understanding his circumstances while in a battle with enemy forces and decides to commit suicide. Reincarnated into a new world filled with monsters and magic the boy felt lost, but also hopeful. Now searching for a purpose to live, a new chance at life, however, Underneath this new world peace lurks a danger threatening to destroy his new life of peace. This is the story of a boy called Sparrow Acheros.