The Unforgiven - Kuroshitsuji

In 1890, London, Noel Kipling went about his days in an officer routine for the Royal family of Britain. Being one if the queens most trusted servants, he felt contempt and never complained.
Though when graveyards and local chapels get vandalised and corpses get stolen, he has to get involved, but not alone.
On queen Victoria's request, he has to accompany Ciel Phantomhive and his butler, Sebastian Michaelis.
With the weight of her majesty's worries, his reputation ready to snap and a mischievous man looming over his shoulder;
He wished he was never involved with this boy and his dark secrets.