Shosuro Giichi

Shosuro Giichi was a member of the Scorpion Clan who befriended Shosuro Jocho, the son of Shosuro Hyobu, Ryokō Owari Toshi's governor.

Uncovered
In 1123 Jocho died, apparently from an opium overdose. A group of samurai discovered that Jocho was poisoned, and traced it back to Giichi. They exposed that Giichi had murdered Jocho in order to weaken Hyobu's influence, hoping to increase his chances to maneuver into her place as governor.