臼沢 塞

Sae is a third-year at Miyamori Girls' High and the president of the Mahjong Club. Sae deeply admires the team's consultant Toshi Kumakura. Despite being the butt of Kurumi's jokes, Sae seems to be very caring about her and the rest of her team.

Acording to Kasumi and Tomoe of Eisui, whenever Sae puts her mark on someone, her opponent wouldn't be able to complete a single hand, its like her gaze blocks an opponents hand from coming together. However, she becomes visibly tired when overusing this ability to the point where she is breathing heavy and stumbling about. Sae's monocle has been shown to cloud up to warn her something big is coming from an opponent.