He is usually depicted in traditional Japanese dress and is older, his hair being gray throughout the entire series.
Koyo Toya's personality is depicted as very serious, both in his professional and private life though he is shown to have his moments of sweetness, especially with his son, Akira, whom he has great pride and affection for. His feeling for go is very similar to Sai as he stated that he will not stop playing go even after he retire as a Professional Go Player.
Go Middle School Tournament Arc
Sai vs Meijin Arc
Hokuto Cup Arc
He is one of the world's top players and was stated by many to being able to match Hon'ninbo Shusaku.
Koyo is Sai's rival, whom he recognizes and respects, despite not knowing his full identity.
Akira is Koyo's son and they are depicted as having a very close and affectionate (for them) relationship. They played go every morning when Akira was a child and Kouyou encouraged Akira to grow as a go player.
Koyo met Hikaru when he was 11 years old and he piqued his interest both in the children go tournament and by supposedly beating Akira (though it was actually Sai). This interest continued when Hikaru became an Insei and later a pro and Kouyou even requested to play him for his shodan game.
|Main Character||Hikaru Shindo • Fujiwara no Sai • Akira Toya • Koyo Toya|
|Other Character||Akari Fujisaki • Kimihiro Tsutsui • Tetsuo Kaga • Yuki Mitani • Kumiko Tsuda • Natsume • Masako Kaneko • Hitoshi Koike • Seiji Ogata • Kaoru Kishimoto • Yuri Hideka • Yoshitaka Waya • Yuta Fukui • Shinichiro Isumi • Asumi Nase • Kosuke Ochi • Toshinori Honda • Tatsuhiko Kadowaki• Tatsuhiko Kadowaki • Shigeo Morishita • Kuwabara • Zama • Harumi Ichikawa • Mitsuko Shindo • Michio Shirakawa • Suyong Hong • Atsushi Kurata • Yongha Ko • Kiyoharu Yashiro|