Highschool DXD Massive Harem x Op Vampire MaleReader

In this world there are angels demons devil's dragons and also vampires and you are the most powerful of them all and you hold the most powerful sacred gear know to ever to exist and your name is (y/n) (l/n) and you are the most powerful vampire to exist in this world but you do live a lonely live because your one true love was a human and after you lost her you became depressed and the only light in this world is your little girl who is a hybrid of a vampire and a human and she is just as powerful as you but what will happen when you meet the orc who where needed add and what there reaction will be when they meet the legendary vampire