Duanmu Huai's careless mistake catapults him into "Star Ocean Online," where he embarks on an epic journey across the cosmos beginning with nothing but a core capsule. As he traverses infinite worlds scattered throughout the starry sea, ancient powers stir within him, demanding to be unleashed. Facing cosmic horrors and universal dangers at every turn, Duanmu Huai pursues his ultimate ambition: galactic supremacy and dominion over the stars themselves.