Yes. Yes she is.
Best looking Tsukihime chick and a fairly close second for best looking Type-Moon chick. (behind Sakura)
<3 the ribbon and that hair pulled back along the sides look. And her demeanor is cute too.And before anyone says "BUT ITS FAKE", it started out that way, but it became her personality over time. (she was just telling herself that it was still an act and that she still wanted to go through with her plan)