When he was young Dorgengoa was a skillful fighter and a treasure hunter. 40 years before the events of Rogue Galaxy, Dorgengoa arrived in the recently reappered Arabis' Ghost Ship were thanks to the ship being trapped inside a space-time anomaly he met what would be his future crew and, despite some intial clash, toghether with them he defeated Arabis' ghost. Unfortunately for him he were time-displaced in his original time when he catched a gem from Arabis treasure and disappeared, but not before giving his sword, the Dorgenedge, to Jaster and saying to him and the others that one day he would be a pirate an have his own crew.