The galactic year is 5028. Gods wage war over the fate of the Milky Way, as its inhabitants fight for their right to live. The Soulless, thrall of the god, Hilos, threaten to wipe out all sentient life, while the Celestials, chosen of the gods Cleva and Solvemos, take the front lines to stop them.

William Ortell, a young man from Furelle is chosen as a successor to Vale, a powerful Celestial of years past whose magic was unparalleled. Together with his friends and the crew of the Blue Sparrow, he must fight against the clock to find a way to put a stop to this war once and for all, while also dodging the Soulless wishing to put a stop to him.

All the while, he struggles to learn his place in this vast galaxy as he untangles the skills of his predecessor, learning to be more than he was, and learning what it truly means to be a Celestial.