My best friend is a vampire.....well I'm as well

You are zero's childhood friend, until one day a pureblood vampire attacked your family and zeros.
But theres something you don't know, some of your memories have been taken away.
will you remember your true memories? will you figure out who you really are?
will zero hate you of what you have become?or will your savior best friend, fall in love with a monster?
read this and find out.