関西棋院
Hikaru enters the Hokuto Cup, an international tournament for under-18 Japanese, Chinese, and Korean Go professionals. As the highest-ranking under-18 pro, Akira qualifies for the tournament, but Hikaru has to compete in a series of games to become one of the three Japanese competitors. His friends Waya and Ochi also enter the qualifying matches. He meets Kiyoharu Yashiro, a player from the Kansai Ki-in, whose style is as strange and offbeat as his own. Hikaru, along with Akira and Kiyoharu Yashiro, are selected to represent Japan, while Suyong Hong (a Korean Go player who was beaten by Hikaru earlier in the series) and two others represent Korea and three of Shinichiro Isumi's Chinese friends represent their country.