Ticking

On her 18th birthday, Odasaku died. On her 18th birthday, the world cried. A disease spread which led to a massive population decline all across the world. Woman, children, and men were all affected, and over the course of 4 years, the female sex disappeared completely.

Even the growing girls that were just learning to take a few steps died. This phenomenon took the world by surprise. Only men remained... how come?

If there was no women, then how would the human race survive? Only the human race was affected.. female animals weren't affected. Was this the punishment from god?

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And two weeks later, in Yokohama Japan, Dazai Osamu had a bounty over her head. As the only remaining woman, she was to be an incubator. who would help humanity. The ADA try to retaliate but she really is the only choice.