Yuu Matsumi

松実 宥
Yuu Matsumi is a thirdyear high school student at Achiga Girls Academy in Nara Prefecture and a protagonist in the spinoff manga Saki Achigahen episode of sideA. She is Kuro Matsumis older sister. When she was younger she wanted to join others in Achigas mahjong club but felt it would be awkward because she was older. Yuu is very sensitive to the cold and covers herself head to toe when she goes anywhere even in the summer.