An unidentified cosmic wave known as "Morpheus D" reacts to minds filled with desire. It causes the Dark Giants to begin fighting among themselves! As they lay waste to the city, a mysterious man is following Yuna… When the dark being tests Yuna's resolve, a miraculous Light descends.

Two capsules from 350 million years ago; they're even older than the 30 million Ultra-Ancient civilion?! Barriguiler's lightning attack hits them, and causes the red and blue devils sealed within to be revived! Kengo and Ignis join together to defeat the two giant monsters!