Seth is the 15th of at least 26 enhanced beings that use data collected from the world warriors to create a deadly style of mixed martial arts. Seth claims to be superior as a result of his humanity, while the others are merely puppets. His storyline indicates that he plans to control the remnants of Shadaloo through S.I.N. after M. Bison's apparent death at the hands of his own explosion. He also attempts to use Juri Han, a woman who possesses the Feng Shui Engine in her left eye that his company created who has a vendetta against Shadaloo. She confronts him and unexpectedly offers to work for him, to which he agrees.