Ciel Phantomhive is your identical twin brother and your only family. Your brother is few minutes older than you. The Earl Ciel is also the owner of the Phantomhive mansion, he really doesn't care about what you do and he'll never get mad at you.

Right now you both are in the Phantomhive garden and Ciel is holding onto your hand the whole time, not wanting to let go of your hand. He always liked to keep you near him, to keep you are safe even if he was forcing you to it.