Kōshin Mirai: The Changing Future of Another World.

Kōshin was an ordinary sixteen-year-old living in his own world—until one night, everything changed. While running from an inexplicable fear, strange scenes began flashing before his eyes: unfamiliar places, people he had never met, and moments that felt far too real to be dreams. Then, somehow, Kōshin awakens in a mysterious world called Astrra. With no understanding of how he arrived there and no clear memory of his past, he finds himself in Calemont, one of the world's great kingdoms. Surrounded by unfamiliar people, demi-humans, strange magic, and a world he knows nothing about, Kōshin has only one thing to guide him—the mysterious glimpses that sometimes show him fragments of what may lie ahead. But the future he sees is not fixed. In a world where the future exists only as fragments, Kōshin must discover what brought him there—and what awaits him beyond what he can see.