Hello, I'm looking for a manga where the villain in interested in the hero either because of their power, because they're different from everyone else or they are just obsessive. Some examples would be:
Yozakura Quartet (Enjin/Gin is interested in Akina, power)
Blazer Drive (Quilin Realm to Daichi, power)
Haigakura (the one god dude to Ichiyou, different?)
Witch Hunter (the Witches to Tasha, power)
Black Cat (Creed to Train, obsessive & really creepy)
07 Ghost (Ayanami to Teito, power)
Aphorism (lots of people to Rokudou, power & different)
D.Gray-man (Earl to Allen, obsessive, different & power)
Dragon Eye (lots of people to Issa, power & different)
Karneval (Karoku's group to Nai, power & different)
and thats all I can really think of. Sorry if this is really confusing and also please no ecchi, yaoi, yuri, hentai or anything of the sort, shounen would be best but if it's shoujo or josei it's fine. Thank you very much

How dare you not mention superior (Villain loves hero)

Zettai Karen Children: one of the main characters is predicted to lead the villians in the future

Wow I started reading Superior and I really liked it thanks Also I'll try zettai karen children next so thank you for all of the recommendations, please keep them coming

basara villian wants to kill hero

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dont all villians want to kill the hero??

Bleach

Haha, that's exactly the kind of thing I likeXD Best would be to go through my manga list...
Well, there's Amatsuki (they're after his power, but somehow I can't really see who's the villain^^" Yet...) Oh, I just saw it's from the same author as Haigakura^^
Maybe Ao no Exorcist (well, it would be his body... don't really know how to explain^^")
Definitely En Passant!! (they're after his power... more or less?)
Nabari no Ou (again, his power...)
Uhm, maybe Pandora Hearts? oO (would be his... former existence I guess? Maybe something else^^")
There isn't that much translated and I didn't watch the anime, but Shakugan no Shana could fit...
Shinrei Tantei Yakumo... I don't know if it's the same in the manga as in the anime but the villain is interested in the mc^^
Soul Eater (the villain (at least the villain that appears the most) is interested in the mc because of an... accident he was involved in^^)
Spiral kinda fits too... Wouldn't say it's really his power... But it could be called that way^^"
Maybe Taboo-Tattoo... There isn't that much translated though^^" (it would definitely be because he's something special...)
To Aru Majutsu no Index MAYBE a LITTLE bit... Can't guarantee it's what you're looking for but SOMETIMES it seems as though the villains COULD be interested in himXD SomehowXD
I think Zombie-Loan also fits (because she's special^^ And has this power...)
666 Satan TOTALLY fits it^^ (his power)
Alive: The Final Evolution also kinda fits (well, it's not so much his power, but more his personality if I understood it right^^)
Double Arts would fit... But unfortunately it got canceled before it really starts... I like it anyway^^
Fullmetal Alchemist^^ Well, he's not the only one they're after^^ You could say, they need his existence^^"
There's also Zion, because the mc is kinda special (well, at least it fits when you see the organisation as the villains...), but I don't like the manga, it's boring...

I wouldn't really recommend it (and you probably know it), but Naruto also fits... And that's the only reason I'm reading itXD

Well, that are all the manga I can think of... Btw, I like most of the manga you took as an example^o^

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Wow FuukaiHimukai you sure gave me a lot thanks=] i've actually already read Ao no Exorcist, En Passant, Nabari no ou, Double Arts, Fullmetal Alchemist and Pandora Hearts and they are exactly what I am looking for. I've been wanting to read Amatsuki so maybe this will give me the desire to. Also I'm already reading Bleach and thats what I want also plus i've also heard about Basara so i'll look into it. Thanks so much to everyone and keep them coming

Try Yu Yu Hakusho and Hunter x Hunter, both from the same mangaka, hxh is a good story but it's currently on hiatus.

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Beliefs are what divide people. Doubt unites them.

Lol. I think that the person who wrote that comment mentioned the wrong part of their relationship. XD The antagonist and protagonist fall in love with each other without actually knowing who the other is. And yes, in their real lives, they both want to kill each other.
I really enjoyed Basara, and highly recommend it. I've reread it many times.

Wolf Guy - Ookami no Monshou

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I totally understand what you want. This is one of my favorite tropes because it results in lots of Fo Yay for everybody! Check out tvtropes.org's section on this. It will prove helpful, I hope. Otherwise, you guys have listed a lot of my recs already... These may be more of initial opponents, I'm not sure if they exactly fit.
Saijou no Meii - not a lot of action/fighting unless it's fighting to save lives...but main character attracts people with his skills, charisma, and personality
Vinland Saga - fighting skills and stubbornness
Replica - ditto, plus the amazing skill to NOT DIE, surprisingly difficult in their world