Rei Kiriyama

Rei Kiriyama (桐山 零 Kiriyama Rei) is the main protagonist of the series. He is a 18 year old 5 dan in Shogi, who became a professional during middle school. He is voiced by Kengo Kawanishi, who did the major role of Mikazuki Augus from Mobile Suit Gundam Iron-Blooded Orphans.