Awai resumes her double riichi play whilst Hiroko deduces that Awai's play style stems from the corners of the 'wall' that the tiles form, though cannot determine how Shizuno overcame it. After Ryuuka once again uses Toki's power to put a stop to Awai's dealership, Shizuno soon starts winning hands against Awai as, having trained in the mountains like it was her backyard, she has strengths pertaining to the 'mountain' that the walls go deep into, affecting Awai's play style and moving Achiga into first place...