It's only two episodes left so it would make sense she remembers Mika well enough. But it will be interesting to see how this will end. My guess is they won't merge anymore but Mika continues to work as a postal worker and Fumi will resume a normal life, more or less. Or should I say begin a normal life as I doubt she will return to her crazy dad's place. Those two meddling former school mates probably will help her reach that conclusion.

Or at least if I had had a split personality that suddenly would have been incarnated, I would rather wish it to continue as a separate entity than absorb it back inside myself (yeah, a really realistic comparison). Well, this is assuming Mika won't start to fade automatically right away. She was an exception among the postal workers in any case.