Kill Me Sweetly, My Butler (Black Butler fanfic)

Elizabeth Balakov, hated by her father since birth. When she thought her twin brother hated her, he actually secretly cared for her. Elizabeth noticed that on her birthday when he died that day. Others are after her in her family name. Now Elizabeth's brother's butler is in her command. But to make him follow Elizabeth's orders, she has to give him her virgin soul?! Then she meets her enemy, the Phantomhive who follow the queen's orders. Elizabeth part is to make weapons for the queen. She loathes Ciel and deffitnitly his butler who has the same name as her's, Sebastian.