新子 憧

Ako is a first-year at Achiga Girls' School and an elementary school friend of Shizuno and Nodoka, but went to a different middle school (Bansei) so she could play mahjong. She was the club's second best player before it was disbanded. When Shizuno re-established the club, she decided to return to the school.

Ako is much like Shizuno in that she is cheerful but more logical compared to Shizuno. She also wants to hang out with her friends as much as possible and have fun playing mahjong with them like the last time. According to Harue Akado, Ako is a cunning individual.

Ako's specialty is recognizing when calling tiles will help her complete her hand faster. She often does this when she has the opportunity to form an open yaku, very frequently getting either sanshoku doujun or ikkitsuukan and increasing the value of her hands with other easy han such as tanyao or dora. This makes her a faster player than other players who wait for more expensive hands. She also has a beautiful grasp of flow, and has even said that "nobody can beat her at high speeds".