His butler, doing his job

Sebastian Michaelis made a contract with Ciel Phantomhive 6 years ago now which makes the young Earl 16. Sebastian was still trying to help Ciel find the people who murdered his parents when he found himself falling in love with the Earl. Sebastian didn't know what to do about these feelings and he didn't think that the young Earl would return these feelings. Little did Sebastian know that Ciel had also fallen in love with his butler. Both of them bring confused about this and didn't know what to do.

Will there relationship go further than the contract? Will they find their way to each other's hearts? Will Elizabeth be okay when she finds out the truth?