Yuuki Mitani

Оригінальне ім’я: 三谷祐輝

A player at the Go Club at Haze Middle School who overcomes his cheating habit. He is angry at Hikaru for choosing to be an Insei rather than stay at the school Go club when they have a tournament around the corner. Yuuki and Hikaru are no longer seen as friends. Yuuki remains in the Go club, but only after much convincing.