Ako, Shizuno, and Nodoka were best friends in middle school, often going to Achiga Girls’ School to play Mahjong. But as time passed, they saw each other less and less of each other. That was until Shizuno saw Nodoka win the middle school Mahjong Singles tournament. She is determined to meet her friend again, at the inter-high mahjong tournament!

The girls have to find two more members before they can be an official club, but Bansei holds a monopoly on the serious players. It is time to track down old friends and rebuild Achiga’s Mahjong Club!

The prefectural tournament has started and Achiga’s first opponent is the famed 9 time winners, Bansei. This is what the girls have trained for; this is their stepping stone to reaching Nodoka.

Matsumi's dragon road is shut down by Toki, the player from Senriyama.

Yuu promises to get the lost points back; Ako's speed play disrupts the pace of the other players.