For some time I've been thinking. What would happen if someone has the blood of Amon running through his/her veins, via an emergency blood transplant from a devilman? For example, Akira being the blood donor, and Miki being the "someone".
My theory: Mike would start feeling a little sick a few days later as Amon's blood will slowly change her. And once the time comes, Mike transforms and kills anybody trying to attack her. Namely, the very mob that killed her in the original manga.
Caution: This may be similar to this link.
http://www.process-productions.com/f...t=36313&page=2