Black Butler (黒執事 Kurosuji) is a manga written and illustrated by Yana Toboso.

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 consume his soul.

It premiered in October 2008, and has since ended with 24 episodes.

The second season aired in 2010 spanning 12 episodes with two new main characters, Alois Trancy and Claude Faustus.

Who do you like? *wink*

Do comment!~~

I personally CANON Ciel x Sebastian~~

Title Song

Credits: Wikipedia, YouTube