Sean is a half-Brazilian, half-Japanese boy from a
middle-income family in San
Paolo, Brazil. He happened one day to witness the Street Fighter
Ken in a fight with the
local legend Blanka. Impressed and inspired by Ken,
he hit the road in search of him,
seeking to become his student. Encountering many on his journey, he learned of another
fighter named Dan Hibiki, whom he was often compared to.
By the time of the third Street Fighter tournament, Sean had found Ken and
incessantly begged and pleaded with Ken to train him in the martial arts. Ken reluctantly
took him around wherever he fought so he could observe, but he refused to train him. Sean
only learned by observing Ken, and dreamed of creating his own unique style. But Sean was
captured by Gill's organization, and they used him as bait to lure Ken into a trap. Ken
ended up once again ensnared in a deadly game by Gill's organization,
and was locked in mystical combat with Gill's brother Urien as a helpless Sean watched. As
the two battled, Chun-Li appeared and freed Sean. He rushed to aid Ken, but Chun-Li stopped
him. She told him that Ken could take care of himself, and he should let him handle it.
After it was over and Ken had defeated Urien, Ken simply told Sean that if he wanted to be
the best, he should seek out Ryu, and attempt to defeat him. Ken later introduced Sean to
Ryu, and the two fought. Ryu defeated him easily, and Sean realized that he would need more
training if he ever hoped to defeat Ryu.