U.C. 0097, one year had passed since the opening of the Laplace's Box. Despite the revelation of the Universal Century Charter acknowledging Newtype's rights and existence, no significant changes had occurred in the world. The conflict known as "Laplace Incident" ended with the collapse of "The Sleeves", a Neo Zeon remnants group. In the final battle, two full psycho-frame mobile suits displayed powers exceeding human comprehension. The white unicorn and the black lion were sealed away to remove this danger from people's consciousness, and should have been forgotten. However, the RX-0 Unicorn Gundam 03, that went missing two years ago, is about to make its reappearance in the Earth Sphere again. A golden phoenix... named Phenex.