Chapter 1: Introduction.

300 years ago, the heroic Star Savior managed to defeat a celestial evil known as Stratosfear, but suddenly vanished without a trace. However, a new evil being named Celesteal has been discovered, and the world is in need of a new Star Savior. The next Star Saviour havs been summoned by Cyalm, who believes that rgey are the one who will fill this role. With Cyalm's guidance, they must collect various stars that are scattered about 10 diverse worlds in order to befriend other celestial beings. Their skill, determination and adventurous spirit will be tested. Do they have what it takes to defeat Celesteal and save the world?

Storyline not mine! Credits to Explode1 for the game.
Basically a fanfiction of a game.