Unnamed Character

This is one of my oc's but i cant find a name that fits her:
she's a vampire hunter who blames herself for her families death she's really good at killing them and its all she ever knew then her sister gets turned and she wont destroy her but the people who emply her have ordered her sisters death so she leaves and all this stuff happens that ends up changeing her veiw on everything in her life and she finds out who exactly killed her family... (cue dramatic music i love dramatic music)