I have a crazy theory about the "Sebastian- I know you" Dude....
What if he was Sebastian's previous "master"?
What if Sebastian did not have the opportunity to eat this soul after "completing" the contract because his "master" may have died beforehand and the contract/agreement could not be completed?
What if UT brought back this previous “master” and as a result the old contract continued to exist?
What if this means Sebastian has to break the contract with Ciel and serve his previous "master"? Sebastian himself says he never has two contracts at the same time...
What if UT has planned exactly that?
As in S2 of the anime, Sebstian now loses Ciel....
And at the end of S2, Sebastian has to serve Ciel without a chance eating his soul... (since Ciel becomes a demon)..
Here in the current manga he would also serve a "master" without a soul..... same end, different plot...
Yana said herself that S2 was written through her hints...
Would be insane.. and intresting...
Any thougts?