Kouyou Touya

Kouyou Touya is the father of Akira Toya and a legendary Go master holding five prestigious titles, including Meijin and Tenran. As the greatest player alive, he is the only contemporary with the skill to challenge the legendary Go Saint, Sai. Driven by his pursuit of the "Divine Move," Touya serves as the ultimate opponent for Sai, who seeks only to test his strength against such a master.