Shirayuki

Shirayuki (白雪) is a character of Sister Princess.

Personality
Shirayuki is described as "refined". She also greatly enjoys cooking, especially for her big brother, and always tries out new recipes for him.

In terms of speech, she appears to be an illeist, referring to herself in the third person as "Hime" ("princess" in Japanese). She also usually ends her sentences with "desu-no".

Shiny Days
After becoming the temporary manager of Radish, Shun can mention a "Shirayuki". Given the brief appearance of Rin's sisters in Summer Radish Vacation 2, it is quite likely that this is the Shirayuki he was referring to.

Trivia

 * Her name and choice of self-reference could be a nod to Snow White.