A Vampire King's Love(alucardxreader)

Y/N is the daughter of a deceased mercenary who taught her everything he knew, making her a threat to any enemy she fights against. She is friends with a policewoman named Seras Victoria who disappears during a mission. She meets Seras again but she has a secret to tell her. What will happen when she learns about the Hellsing organization and meets a certain dark haired vampire? Will they become bitter enemies or will they discover feelings long forgotten?