

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.
Hikaru takes the prelims to qualify for the Pro exams whereas Waya/Isumi are admitted straight to the finals being among the top 8 of the Insei program. Hikaru is intimidated by Tsubaki, a really loud and brash guy, who turns out to be his first opponent. Tsubaki plays mind games with Hikaru and won the match. For Hikaru, the loss highlighted his inexperience with playing with adults since starting go and it represents a hurdle he has to overcome to reach his goal.
Hikaru is overwhelmed in playing go with adults and his second loss placed him at a precarious position (third loss means an ousting). As desperation climbs, he becomes more determined than ever by drawing his inspiration from Akira. Fortunately, his third match with Fuku started him on a winning roll. While Waya/Isumi were practicing at a Go salon, a customer gave them the address of another Go salon where there're supposedly many experts. Waya/Isumi decided to drop by the Institute to check on the gang and are dismayed to find out about Hikaru's performance. Hikaru won his last match by default and gained entry to the pros exams. Waya decided to bring Hikaru along on their Go salon visits after hearing about his encounter with Tsubaki.