The story culminates in a final battle against , an ancient entity aiming for mass possession and destruction. Your choices throughout the game—specifically your dialogue responses to Emilia—determine the outcome of the story:
: The ancient spirit dwelling inside Emilia who holds vital information about the galaxy's fate. The Rising Threat: Shizuru and the Ancients Phantasy Star Portable 2 PSP
As you travel between planets, you frequently encounter , a mysterious teenage boy in black who serves as a primary antagonist and poses a direct threat to the entire galaxy. The plot shifts from simple mercenary work to a grander conflict involving the "Ancients" and a plan to migrate Gurhalians to outer space using "sub-space sailing theory". The Climax and Multiple Endings The story culminates in a final battle against