This boy was one of the heirs to the Shihōin clan, but, at the age of nine, was killed along with his clan (save his sister, Fujoshi), when the Yama Clan attacked Yamagakure and eradicated the Shihōin.
This boy was one of the heirs to the Shihōin clan, but, at the age of nine, was killed along with his clan (save his sister, Fujoshi), when the Yama Clan attacked Yamagakure and eradicated the Shihōin.