U.C. One year after the opening of "Laplace's Box" in 0097. Despite the disclosure of the Universal Century Charter, which recognizes the presence and rights of Newtypes, the world's structure has not been significantly transformed. The fight known as the "Laplace Incident" is supposed to have concluded with the defeat of Neo Zeon remnants known as the Sleeves. Two complete psycho-frame mobile suits demonstrated power beyond human comprehension in their last combat. The white unicorn and black lion were sealed away to eliminate this threat from people's minds, and they should now be forgotten.