Koyoi is such an obsessed freak. She's the best part of this episode for me.

Saki is hot (and voiced by the sexy Rie Tanaka) but if Koyoi wasn't already the focus this episode she would have stolen it. There have been brother-complex characters before, and there's even another sister-complex character in this series, but Koyoi just takes it so much farther than anyone. Koyoi is easily the funniest character in the series so far.

I like Kei too much to be easily swayed by Saki's feminine wiles.

That and Saki reminds me too much of Aya from Ichigo 100% (more accurately she looks exactly like Lilim from Lilim Kiss), I was always a Satsuki/Tsukasa fan.