Two hundred and fifty years into the future, humanity survives in a world permanently scarred by the existence of Drifts—evolved creatures born from a forgotten catastrophe tied to the mysterious force known as Ether. To most people, Ether is a rare power that awakens under extreme circumstances, allowing individuals known as Sentinels to protect civilization from the ever-present Drift threat. Nations still stand, cities still thrive, and life continues—but beneath the surface, humanity lives in the shadow of a war it never truly won. In this world, Mirai is different. After spending twenty-four years in a coma, his consciousness was unknowingly raised inside an artificial reality where time flowed thirteen times faster than the real world. While his body lay motionless, he experienced centuries of memories, lives, lessons, failures, and growth. When he finally awakens, he returns to a world he has never truly lived in—and yet somehow feels strangely familiar. Unlike the heroes celebrated by society, Mirai possesses no awakened Ether. No extraordinary gift. No legendary destiny. Only an uncanny calm in the face of danger, instincts he cannot explain, and the lingering sensation that he has walked countless paths before. Seeking purpose, he joins the Global Sentinel Authority and enters a brutal world of military training, battlefield survival, and escalating conflict against the Drifts. As wars reignite and hidden truths begin surfacing, Mirai finds himself caught between forces that have shaped humanity for generations. But the deeper he ventures into the world of Ether, the more disturbing a question becomes: What if the greatest threat to humanity was never the Drifts... but the evolution of human consciousness itself? As ancient secrets, powerful organizations, and unimaginable enemies emerge from the shadows, Mirai's journey will challenge everything the world believes about life, identity, and what it truly means to be human