Final Fantasy IX in Persona 3 The Movie: Spring of Birth

Final Fantasy IX in Persona 3 The Movie: Spring of Birth is a Crossover movie by Atlus and Square Enix.

Summary
Makoto Yuki and Vivi Ornitier learns there is a period of time hidden between the minute of midnight called the Dark Hour, a time when monsters called Shadows appear. They soon learns how to fight against Shadows that threaten the world from the tower of Tartarus.