In the ethereal realm of Asvold, the celestial city witnesses the birth of Zephyr, a child marked by an insatiable hunger for cosmic energy. This cosmic anomaly leads to his condemnation, banishing him to the mortal realm. Renamed Kai, he grows up in a tranquil village, shielded from his celestial origins. However, an innate desire to amass cosmic energy and ascend to Asvold as the mightiest force in the universe stirs within him.