Synopsis
By the year 2010, a sudden environmental shift and an unknown contaminant have wiped out every man on Earth. The population plummeted to an all-time low, leaving only women behind. These women now live clustered in small pockets of a world largely overtaken by nature. Some accept their inevitable extinction and spend their days without worry, while others turn to science in a desperate attempt to continue the human race. Constant conflict arises from these clashing beliefs and approaches. The story unfolds in the heart of Tokyo, one of the few remaining havens. The battle over a specimen known as "ICE"—and the hope it might offer for humanity's survival—begins.