The Queen's Guard Dog and Her Majesty's Hellhound (Ciel X Big Sister Reader)
As the Queen's Guard Dog, Ciel Phantomhive is requested by her Majesty, Queen Victoria to work along side with her beloved hellhound on a case of kidnapping, before he even he receives the Queen's letter, he instead receives a letter from Sir Hive himself. While being the owner of Hive's Tea company, however, what Ciel doesn't know before meeting with Her Majesty's Hellhound, is that the knighted noble is assumed to be man of high stature in society, and rumors of the noble of him flaunting his title to get whatever he wants. But when the the guard dog and the Hellhound meet, his shocked to see that Sir Hive is actually a woman, whose full name is (Y/N) (M/N) Hive, and the most peculiar detail is the that Madame Hive seems to undoubtedly knows the young Earl personally. (Y/N) has been trying to hide the fact from Ciel, that she's his elder sister, and will anything to protect him....even if from the truth itself. Will Ciel connect clues to (Y/N) true identity or will he stay ignorant to notice his own sister in front of him?…