Around the end of the war, aliens called the Delonese also appeared and began to revolve around Earth. They gave humanity advanced technology and helped them to recover, seemingly without cost. They appear like beautiful, tall humans who do not blink. They are heavily involved in Earth matters.
Sofi and Shilo compete in dangerous games representing their Corp. Shilo is the gamer (gamers are teenagers who play for the wealth typically) on the field who must pass each level, at potential cost of his life or health. Sofi is the lead programmer who helps him to pass the levels/games. She must be the best, because Shilo's life depends on it. Everything is soon to change when an explosion during the game goes off, killing several gamers and bystanders. Sofi knows she saw her brother alive, even though they have declared him (and her) dead. To find Shilo, Sofi must uncover truths that others have been overlooking and recruit help, in the form of her ex-boyfriend.
Miguel is a delegate to Delon, and he finds himself unable to turn Sofi down when she asks for help. The novel is told in their alternating points of view. While it was slow in places, it was overall really fascinating, like a combination of Warcross with aliens. It ends with a bit of a cliffhanger, so I wanted to mention that as you'll want the next book right away!
The content gets a little dark at the end, so it might be better for older teens. Overall, it was a great YA sci-fi, and I can't wait to get into the next book! I'll also say that I liked the diversity of the main characters (Sofi's skin is brown and Miguel is Hispanic)- so great to see this!