Black Butler MIDNIGHT

When you were little you were abandoned left to survive on your own. As time flue by you were found by Sebastian and Ciel, who brought you to the Phantomhive mansion and gave you food and a place to stay. But as people say 'an eye for an eye' you had to pay them back and why not be a maid right?

But what was the reason why The Earl Ciel Phantomhive, the Queens Guard Dog took you in?

Is it simply because he has an attachment to you or is something else

A Mystery that simply needs to solved but can it be solved or you simply wait until the last MIDNIGHT you see