Board Thread:General Discussion/@comment-6192846-20140806122913/@comment-6986530-20140903155325

Eve possessed Mikulia in the womb after Mikulia's grandmother passed away. In this case, possessing her appears to mean "using her as a vessel" and not contracting.

Since Eve as the demon speaks separately from Mikulia at some point (need a translation to confirm but that's the information so far) we can guess Eve knew who she was and that she wasn't Mikulia. Mikulia is, in function, just like the Clockworker's Doll to Eve.

After Irina coaxed her into the doll, and then after Mikulia died, Eve hypnotized everyone into believing she was Mikulia, including herself.

That's about it.