Hikaru no Go Vol 13 Author:Yumi Hotta, Takeshi Obata (Illustrator) Hikaru and Sai are both scheduled for matches with their greatest rivals -- Akira Toya and his father, Toya Meijin. How will Sai play without revealing his secret identity? And will Akira's father stand in the way of Hikaru's long anticipated rematch with his son...? The suspense is getting unbearable!