Yup, manipulative
like the girl from Onii-chan Control. Though she doesn't have to have any other qualities. Or rather, it's fine as long as she has the manipulative quality.
Thanks!

Well, you could try [url]http://www.mangaupdates.com/series.html?category=Manipulative+Female+Lead[/url].

A fairytale for the Demon Lord
Tower of God If she can be considered as lead.

[img]http://media.tumblr.com/e43f35cfdd762cc666571a6dd0f163d5/tumblr_inline_mhbel8Cy8V1qz4rgp.gif[/img]

Does she have to be the lead? If not, there would be more coming to mind.

Hoozuki-san chi no aneki maybe, also fits with your sadist search

[img]http://www.mediafire.com/convkey/a8ee/v1c0uzwpt6cdtcbfg.jpg[/img]

Quote from -shiratori-

Does she have to be the lead? If not, there would be more coming to mind.

Hoozuki-san chi no aneki maybe, also fits with your sadist search

haha, how did you know I was searching for a sadist? I already read that one though.
And I would like it if she was the lead. Well, if not, then every manga must have a character like that somewhere.

Kanoko from Warau Kanoko Sama and Koi Dano ai Dano def. fits the bill

nozoki Ana

I like turtles

Football Girl

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Quote from xxarrancarrxx

nozoki Ana

Thanks, and I agree, she's awesome. But I already read it T T. Same for Kanoko

Yuureitou
S no Kaikoroku

Aku no Hana
There is a manipulative female lead in the beginning, but I don't know wether this persists throughout the series. I'm guessing it does.

Quote from Giesela

Yuureitou
S no Kaikoroku

Yes for Yuureitou, it's quite interesting... I liked S no Kaikoroku but she's not exactly manipulative...