Imagine a world with only women. No men. The men have been destroyed by a virus that women are immune to. The remaining men live in sanctuaries. New babies are born using IVF, but if it's a boy, it is sent away to a sanctuary before the mother can even see it. There are four generations of women: Gramummas, Mummas, Teens, and Littler Ones. The Granmummas were teens in the time before the men were killed, so they remember the old world. Everyone else only knows the new world of only women. This world is turned upside down for River when she finds a boy one day. He tries to attack her but she subdues him and brings him back to her village. But the boy should have been killed by the virus long before now. There's a reason he's still alive. And now he owes River for saving his life.

The premise of this story is very good. It's a world run by women, 60 years in the future. This is especially relevant today, when many women are losing the rights that they have spent centuries earning. Even the title is a reference to a Beyoncé song, "Who Runs The World? (Girls)"

I wish the story had more description of the new world. River narrates the story, which gives a first person perspective of what is happening. However, this often turns into a stream of consciousness that is confusing until the details of the community are told. I still had many questions about how the world was run and what it looks like. The buildings are falling apart, but why? And where do they get their money from? They eat insects rather than meat, so where did the animals go? I think there could have been a whole book just to explain the new world without men.
It's interesting how the genders were divided up. The men were associated with violence and fitness and video games. The women don't fight or workout or play video games at all. I'm not sure if these stereotypes would play out in real life if this happened, because plenty of girls like to work out and play video games.

This was a very intriguing story, but I wish it had some more details to completely immerse the reader into the story.