This is just my take on it but in a previous chapter there was a flashback panel that showed Mikel in color while everyone else was in black and white. So it would be safe to assume that Mikel could be that lady in the second panel (picture showed below) with Blow.
We know that from their dialogue in chapter 164 that they knew each other in the past, so its not too crazy to assume that they we're past lovers. Mikel also says in that chapter, "I held on... waiting for you." So maybe Mikel waited in his/her "human form" for Blow to be reincarnated so that they could meet again.