The son of a samurai artisan, Shinjo Jo always wanted to follow in his father's footsteps. But like so many of his disgraced family, exposed as members of the kolat conspiracy, he became a warrior as a Shinjo Horsebowman. He remained a
soft-spoken man at heart, although he could be harsh and direct when giving orders or disciplining wayward subordinates. Jo was appointed as gunso of 1st squadron,
1st compant, Tenth Khol legion. He was dependent of his sister.