After failing to reclaim Riku's heart in Castle Oblivion, Ansem devises a whole new plan: create a new vessel with Riku's darkness. After being created though, nobody expected this supposed-to-be vessel to forge his own path... (Eventual OC/Xion)

In a time called "The Age of Fairy Tales", the world was filled with light. The worlds lived in harmony and peace. Keyblade wielders belonging to the five ancient Unions kept the darkness at bay and protect the light. However, the cogs of fate continuously turn, and one Keyblade wielder will find herself in the center of a brewing war that threatens the entire realm of light.

You can run, but you can't hide. The Ghosts are real, and they are coming for you.