JJ is the leader of the Green Orcs in Radiata Stories. the Green Orcs used to make their home in Borgandiazo, before they got kicked out by the Blood Orcs. They no longer have their own homeland, and live scattered throughout the world.
During the Nonhuman Side playthrough, JJ is a recruitable party member. Lord Zane instructs Jack to speak with JJ as part of the fairy creatures' bringing the orcs into the war effort. JJ helps alleviate Jack's uneasiness about orcs after what happened to Ridley.