Sougo received the Ziku-Driver as a tribute from Woz, and even when his Ziku-Driver was destroyed, a new one was once again provided by Woz. On the other hand, Geiz had stolen the Ghost and Drive Ridewatches from Oma Zi-O. Additionally, when Woz encountered Oma Zi-O in the future, he acted as if he were his loyal servant. Considering these factors, it is possible that both the Ridewatches and the Ziku-Driver originally came from Oma Zi-O himself.