When their close friend and fellow mahjong player Nodoka transfers away to Nagano, Shizuno and Ako worry they will never see her again. But, when the two see her on television a year later winning the Middle School National Championship, they revive the defunct mahjong club at Achiga High with the hopes of meeting her at the tables of the high school tournament. It won't be easy, as the competition is full of monsters like Saki Miyanagi who seem to warp the very laws of probability. How can the plucky girls of the Achiga High Mahjong Club hope to compete, and will they manage to see their long lost friend again?
Kojirou-sensei, the rather indifferent teacher and coach of the school kendo club, is in financial dire straits. As a result, he makes a bet with his fellow kendo coach and former upperclassman to see who can assemble and train the better female kendo team, with the prize for Kojirou being a year's supply of food if he wins. Motivated by the idea of free food for a year, he begins to teach the club seriously; however, most of its members have already graduated, and so he is tasked with assembling members in addition to training them for the competition with his rival. While dealing with his eccentric students, he slowly rediscovers why he loves kendo and what it truly means to be a teacher.
If you liked Saki Achika Hen: episode of side A you will probably also like Bamboo Blade because both of the series involve competitions as teams and individuals. Both of these series also revive dying clubs to face their friends from the past.