Definitely Sedate. No question. Sadistic is for masochists hungry for a Darwin Award.

Sedate! Sedate! SEDATE! >_<

Yuuka, why have you been into my Red Velvet cake?

When I saw the thumbnail, I thought it was just going to be "S" and "S", because she's always S, no matter her expression.

On that note, a Byakuren image with "Calm" and "Furious" (maybe even "Furioustic Finaliality Steaming Dream") but using identical pictures would be pretty funny.

*0* My waifu is so beauty when Sadist, my god.

I choose sedate too. Enough with those S fanjokes.

As much as I actually prefer a somewhat sadistic girl, that blood on her hands gives me the feeling that this Sadistic isn't quite what I'm looking for.