Fate of Io's story is the underlying narrative that provides direction and contour, tying together all other Project material in its context. Taken together, the following sections flesh out the occurrences of the game as it is experienced by the player:
This detailed exposition, consisting of four parts, outlines the chronology of events in the story.
The dramatis personae; get to know each of the principal actors in the story. They are categorized by player and non-player characters (those the player does or does not control, respectively).