Kuroshitsuji: Kishuku Gakkou-hen

Butler Sebastian Michaelis works with his 13-year-old master, the earl Ciel Phantomhive, to do the dirty work of "the Queen's guard dog" in nineteenth century England's gritty underworld.

One day, Ciel receives a letter from Queen Victoria telling him that several students at Weston College, one of England's top public schools, have seemingly disappeared... including a relative of hers named Derrick. And so, Sebastian and Ciel infiltrate Weston College to get the bottom of the matter. What truly happened to these students?