Zama (座間), a.k.a. Zama Oza (座間王座 Zama Ōza) - The current holder of the Oza title. He play Akira Toya in Shinshodan Series and beat him
Oza shown himself to be quite kind and intially going to let Akira win until he change his mind after see Akira Attitude He bites his fan (as shown in image) whenever he is completely focusing on a game.
Akira Toya plays against him in the Yugen no Ma, a room in the Japan Go Association (Nihon Ki-in) building. Akira loses after a vicious struggleAkira begins making restless moves to prove to Hikaru that he will be soon undefeated. Waya and Isumi replay the match for Hikaru, who is intrigued by Akira's strategy. Akira's plan may have backfired during the course of the match, costing his victory against the Oza.