Daichi, Departing Hair

The protagonists find a race of microscopic illegals growing on their faces. Yasako, utilizing a communication device devised by Megabaa, becomes heavily engaged in a god game-like relationship with the developing civilization. She attempts to use her divine influence to save the war-mongering race before it crumbles from a nuclear holocaust. In the wake of devastation, the illegals set out to find their "homeland".