Hellsing

Unbeknownst to the masses, vampires do exist; as a precautionary measure, certain groups have been created to keep them (and their creations) under control. In the United Kingdom, the group is the Hellsing family, with Integra Hellsing as the leader.
One night, a squad is sent out to a village to solve the mystery of the increasing number of disappearances among the locals. Victoria Seras, a rookie police officer ridiculed by her comrades, is bent on proving she can handle the mission, but soon discovers they all have been overwhelmed by the vampire and his slaves. During the fight that ensues appears Alucard, a mysterious man who kills the vampire and severely injures Victoria in the process. On the verge of death, she accepts to be turned into a vampire by him, accepting him as her master.
On their way back to Alucard's group, she discovers the truth about the Hellsing Organization and accepts to fight alongside them. The story is mostly told from her point of view and shows her relationships with the other characters and the hardships she encounters while trying to accomodate to her new lifestyle.

Free Downlaos OST Hellsing
OP1 – RavenWings – Nogos Naki World
ED1 – Mr. Big – Shine