What anime is this?

The anime is 'Shiki'
The girl you're talking about is Shimizu Megumi
"During a fiercely hot summer in Sotoba, a peaceful and quiet village with a population of 1300 people, a series of bizarre deaths begin to occur. At the same time, a strange family moves into a long abandoned mansion in the region. After supposedly visiting this strange family, the fashionable Shimizu Megumi goes missing and the entire village goes out in search for her."

Hmmm...i would say Vampire Knight but i definitly don't remember a pink haired girl with a black dress in it (then again i watched that series a while ago)
Mi sorry, i hav no ideaz 0o0

I think the Anime Is Called Shiki. Do you mean....? If You Don't Recongise It Then Watch The Video. Her name Is Megumi Shimizu And she comes from the Anime/Manga/Book Called Shiki. She Is 15 years old, She lives In Sotoba and she hates It there and the People. They sort of make fun of her because she wears Fancy clothing and they wear Causal clothing. She apparently was Bitten by The Mistress Of Kanemasa(Chizuru Kirishiki) And had her blood drained for 4 days. After her Death she rose up as a Vampire(Known As A Shiki) and the boy that saw her(The boy with blue hair) He Is called Natsuno Yuki and Megumi had a Forbidden love for him, But he didn't accept It. He labelled her as a Lovesick Puppy as a Human but maybe not Now! The Guy she bites Is called Tohru Mutou, And he also becomes her Kind later In the series. Megumi's death was when She got Ambushed by a bunch of Human freaks - And they hit her with Tractors many Times. The second last hit was On her right arm, After that she screams In pain that she hates the village and the village would be better off If It never existed, She doesn't finish her message because a tractor wheel runs over her face. But Megumi Is still alive until she gets Staked In the Heart by the Humans. That's all I have to say.