By A.D. 2010, all men have died off quickly due to a dramatic change in the environment and an unknown contaminant. The population decreased to the lowest number ever seen…until only the women were left alive.
They live huddled in small corners of a world mostly reclaimed by nature.
The story takes place in the center of Tokyo. It is one of the places left for them. The conflict over the specimen of “ICE” and the chance it may provide to save humanity begins.