Hi
I am looking for a manga or anime where the main character's primary love interest is also the primary antagonist ala Umineko no naku koro ni and Superior.

Thanks

Not a exact fit, but pretty close...
Vampire Juujikai
Mahou Tsukai Kurohime
Both applies at a rather latter stage... I won't bother spoiling it.

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The Company
[b]Batoto

Seconded, Basara perfectly fits the criteria you wanted. <3

Anne Freaks
Cat's eye The boyfriend's a policeman chasing a cat burglar who happens to be his girlfriend.
God child
Hot blooded woman
Dokuhime
Hoshi no Samidare
Elfen Lied?
Princess..I'm a sucker for normal peasant girl with an evil...cold hearted playboy prince.
Silver (FUJITA Kazuko)...the main heroin hates the antagonist so much that she changed her looks and seduced him as her revenge.
Ludwig Kakumei Ludwig and his exploits with some of the 'evil princesses'.
Saikano? If Chisa counts as the manga's antagonist?? I'm not even sure which side she is on.

Last edited by Brucie_kun at 7:29 pm, Mar 25 2011

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Rape is imminent.

Thanks.
Already read Kurohime. The first part that didn't involve the fighting between the main characters was good. 2nd part, not so much.
Basara looks interesting + it's completely scanlated. Cat's eye looks good but the releases seems to have stopped. Haven't heard too many good things about Elfen Lied. I gave up halfway through Hoshi no Samidare. It felt pretty cliched.
And Saikano is too sad for me to read. that ending ;_;