In this final installment of the famous Phantasy Star series, the protagonist, while out on a routine assignment, uncovers evidence pointing to a sinister threat to the entire solar system. One thing leads to another and he and the rest of his party eventually find themselves fighting the root of all evil.

No reason to rush things though, right? In addition to completing all sidequests, the author also uncovers every single reference to Phantasy Star I and II in the game. An exhaustive list of these is found in the author's comments.