Setsuna Subaru

Muryou's older sister. She's a college student who lives in Tokyo, but she often comes to Lady Momoe's home to visit Muryou. In fact, it's become a trademark of hers to stop by with all sorts of sweets from various parts of Japan. She's got a cheerful disposition, and sometimes seems a bit scatterbrained. But like a lot of people in Hajime's life, there's more to her meets the eye… Setsuna has a lot of hidden qualities, but one thing's for certain - she's very good at looking after people.

(Source: Shingu.rightstuf.com)