Black Butler [Manga]

The series follows Sebastian Michaelis, a demonic butler who is bound by a supernatural contract to serve Ciel Phantomhive, the thirteen-year-old head of the Phantomhive noble family and the business-savvy owner of the Funtom company, a toy manufacturer. In return, when Sebastian has helped Ciel finish all of his tasks, including avenging his parents’ deaths, Sebastian will be allowed to kill him and consume his soul.