Ciel happens to invite you to stay overnight at the manor because the manor is quiet. Afraid if something undesirable happens, Ciel tells you to stay up for 5 hours if possible more.

That night felt quiet, there was only the sound of the wind blowing. Very quiet and fits the manor atmosphere. Then, there was the sound of someone's heavy footsteps. The perfume smells good, and the aroma is very fragrant and cool. You are guessing who that person is...

???: is my young master bothering you because of this task of staying up late?

His masculine voice sounds nice, when you turn around it turns out it's Sebastian, the butler at Phantomhive manor