When a change in collective conscious sends the Outsiders, a group of aliens, to the shadows below the city, humans reason that the demonization of their peers is simply more "humane." There's no question, nor doubt. Just acceptance.
Lydia had embraced that sense of "truth" for as long as she can remember. The daughter of a powerful governor, she has been able to live her life with more comforts than most. Comforts can be suffocating, though, and when the opportunity to teach Outsider children in their private, "humane" community becomes available, she takes it.
What she finds beneath the city is far from the truth she had grown to know. There she meets Alessia, an Outsider with the knowledge and will to shake the foundation of all those who walk above ground. The two find a new and unexpected connection despite a complete disconnect from the technological world. Or perhaps in spite of it.
Still, it takes a lot more than an immutable connection to change the world. Lydia, Alessia, and a small group of Outsiders must navigate a system of corruption, falsehoods, and twists none of them ever saw coming, all while holding on to the hope to come out alive in the end. But it's a risk worth taking, and a future worth fighting for.