If two become one
Let’s just say, for the sake of argument, that Undertaker hopes to combine the soul of our earl with the body of real Ciel. And let’s even say he accomplishes this.
That’s when lies become truth.
Why?
Our earl has been calling himself “Ciel Phantomhive” for almost four years now, and the demon likes to tease him over this constant lie. However, we know our earl doesn’t actually like lying about his identity. He says he’s ok with paying the demon (a servant) his soul (wages) for fulfilling the contract (his services). He even comes to like the idea of his soul being devoured, never to be judged, and is happy to end this life (borrowed time) of “being Ciel”.
Now, Undertaker’s possible motives for combining the two are hard to explain, in full, but basically he might wish to create one Phantomhive with the physical strength and some aspects of the mind of real Ciel... and the good (let’s face it, he’s actually good, despite the things he’s done) soul of our earl. This could be the parallel to the Ultimate Chimera of Mother3. We can call this combination the “Ultimate Doll”. But, in the game, Dr. Andonuts loses control of the Ultimate Chimera, and it goes on a killing spree.
Ok, so I should hope that the combination of the Phantomhive twins, the “Ultimate Doll”, wouldn’t do that, but he/it has a good chance of defying Undertaker, since our earl doesn’t want to be Ciel forever. Being combined like that could be maddening, and he/it might want nothing more than for it to all end.
And the demon has said he’ll be around until lies become truth. Unknown to everyone, probably even unknown to Undertaker, the twins might actually need to be combined for this contract to conclude.
In Mother3, it was all about a race to fulfill a prophecy, and everything fell into place for that to happen. Same thing in Harry Potter, really. But, instead of a prophecy in Black Butler, it’s all about attempting to fulfill a contract, and everything will fall into place for that to happen.
Thoughts?