HIkaru can't seem to get any better at Go, despite the fact that he plays with Sai every day. If he wants any chance to get into a tournament and face Akira, he needs to get stronger. Sai reveals the ultimate weakness of Hikaru, he's afraid of Sai, and every other opponent he faces.

This is a very fun episode where Waya, Isumi and Hikaru form a team to go around challenging the patrons of the various Go salons. The bet being that they won't have to pay the admission fees in event of a win and Waya raises the stakes even higher by allowing a few moku handicap in subsequent games, much to the protests of Isumi/Hikaru (since they have to wash all the stones if they lose). Hikaru becomes friendly with a particular go salon named 'Heart of Stone' and its patrons. Through this exercise, Hikaru manages to overcome his weakness in playing go with adults.

The Pro Exam is nearing its end as the last three matches arrive. Ochi, Waya, and Hikaru are currently the top three, and Ochi is at the point where he'll pass even if he loses all of his matches. Hikaru and Waya must still be careful, as a loss or two could cause them to lose their spots.