The people of Pulse and Cocoon lived in harmony until an anti-Pulse group started a war. Lightning Farron, Sergeant in the Guardian Corps before the war started, was sent to a hospital after she was severely injured. The nurse ordered to take care of her, Vanille, thought of Lightning as a normal patient but found out there was much more to the soldier than she originally thought.

Vanille finds a strange, wounded woman on the shores of Besaid and must help her piece together who she is, where she came from, and why she is being hunted by Bevelle's Guardian Corps. Set in FFX universe but centers on Lightning x Vanille.