[serenade_beta]

Originally Posted by hayate-sama

Spoiler for well people will open this anyway:

Who is this girl and her ability, she seen to fond of touma

Pff... Misha...
Mm, if I remember correctly, she uses torture tools like seen in the picture...
Either way, if you are referring to "that" picture, than

Spoiler:

It's not even her, kekeke.
Her real name is Sasha, but Angel-sama took over her during volume 4 and named herself as Misha. She later has a big battle with that messiah complex woman and goes bye-bye after that.

Rather, she appears in the next arc, so I personally think it would be more interesting if you just wait and experience for yourself on who "she" is...