Black Butler: Public School Arc

Black Butler (Japanese: 黒執事, Hepburn: Kuroshitsuji) is a Japanese manga series written and illustrated by Yana Toboso. It has been serialized in Square Enix's shōnen manga magazine Monthly GFantasy since September 2006. The series follows Ciel Phantomhive, the 12-year-old Earl of Phantomhive serving as the Queen's Watchdog.

來源: Wikipedia