The S.I.N. corporation, the weapons division of Shadaloo, organizes a new world fighting tournament.
The true purpose of the tournament is to gather data from the world's most powerful fighters to complete the BLECE (Boiling Liquid Expanding Cell Explosion) project, a living weapon. Ultra Street Fighter 4
The game's story is set several months after the events of Street Fighter II . The S.I.N. corporation
A short anime sequence explaining why the character joined the tournament. the weapons division of Shadaloo