Ako Atarashi

Ako Atarashi (新子 憧 Atarashi Ako) is a first year at Achiga Girls' School, and a protagonist in the spinoff manga, Saki Achiga Hen episode of side A. She is an elementary-school friend of Shizuno Takakamo and Nodoka Haramura, but she went to a different middle school so she could play mahjong and the younger sister of Nozomi Atarashi, a former teammate of Harue Akado during their time at Achiga.