War Legacy: The Cosmic Harvester

In the war-torn Alvon galaxy, the militaristic Human Empire relies on soul-bound Mechas, awakened by its youth, as its primary defense against a relentless Demon race and other formidable interstellar powers. Kaelen Vayne, a 25-year-old engineer reincarnated into the body of a ten-year-old war orphan, awakens an anomalous Mecha, the "Nyx Frame." Guided by a sophisticated AI from his past life, Kael must navigate the Empire's rigid military structure while concealing his Mecha's unique and dangerous ability to devour the essence of defeated foes - to fuel its growth. As Kael grapples with the ethical implications of his "Cosmic Harvester" and the ever-present hunger of it, he is thrust into the brutal realities of Mecha combat, facing not only external enemies but also internal suspicions and rivalries. His journey is one of survival, power progression, and the desperate quest to master an unprecedented power that could be humanity's greatest weapon or its ultimate undoing