Who Is Sai?

1 Eternal Rival 2 Discovered Weakness!! 3 Akira Bears His Fangs 4 Kaga in Shogi Club 5 Prediction of an Awakening 6 The Beautiful Match 7 I Won't Play Against You 8 The Scheme in the Rain 9 An Irritating Presence 10 The Third Member 11 The Most Inconsiderate Act 12 You Are The Third Board 13 Each of Their Decision 14 The Third Match 15 The Player On The Net 16 Who Is Sai? 17 The Match of Revelation 18 Akira vs. Sai 19 Hikaru's Strength 20 The Road to Becoming a Pro 21 The Haze Jr. High Go Club 22 The Insei Examination 23 The Room of Yuugen 24 Ouza vs. Akira 25 Sai's Sword Unsheathed (1) 26 The Greatest Wall for Hikaru (2) 27 A Place To Go Back To 28 The Wakajishisen 29 Kuwabara Honinbou 30 Ogata vs Honinbou