Sho had trained his younger
brother Eiji and his friend Kayin
Amoh in sword fighting, however, he eventually abandoned the pair. He
then traveled the world as a lone warrior and became infamous for mercilessly
defeating any other fighters rumored to have potential, among these being
Kayin's father, who he killed.
When the first Toshinden tournament was
announced, he secretly entered the event and encountered Cupido, a woman
from the Secret Society. They fell in love and eventually had a son together,
named Subaru. After the events of the third tournament, where Eiji had
destroyed the Organization and its leader Abel, Sho finally faced his brother
and left Subaru in his care. However, he then disappeared immediately afterwards
In Battle Arena Toshinden 2, a robotic copy of Sho called "Replicant"
was created by Ronron. Sho was able
to defeat Replicant with little problem.