The journey of an assassin and her new found love

There once was a girl named Ayano fujibani she was a normal girl till one day she fell in love and never got back up (killua x fem o.c) I do not own killua or the other HxH characters but I do own Ayano the cover art is not mine and neither is Ayano s photo the characters back story is though. NO Smut cause their both 12