Saki doesn't understand why she was taken to play mahjong but that's where Saki and Nodoka met. Nodoka wins but questions Saki's playing style so she asks for another game.
It's obvious she was collecting circles, just look.
من الواضح بأنها كانَتْ تجمعُ قراميد دائريّة، انظري فحسب
[Pin: Fichas de círculos.]
Tu vois bien 
qu’elle collectionne les cercles !
Era ovvio che puntasse ai cerchi, segui il gioco.
Estava na cara que ela estava
com uma mão de círculos.