For decades, the world has been caught in a cold war between two powerful nations: Medaluo and Atahua. The Medan orphans who live in Atahua suffer the cost. Their enrollment at Nile Military Academy is mandatory. Either serve as a soldier, or risk being labelled a spy.
Eighteen-year-old Eirale is one such orphan. Having recently graduated and joined NileCorp's forces, she's doing well for herself - until Atahua's most wanted anarchist frames her for assassinating a government official and she's given a choice: cooperate with him to search for a dangerous program in Medaluo or go down for treason.
Meanwhile, seventeen-year-old Lia is close to her own graduation when she's paired with her academic nemesis for one final assignment. But when they are ordered to infiltrate Medaluo in virtual reality, Lia quickly realises there is much more at stake than her school ranking.
As Eirale and Lia tear through Medaluo on separate courses, the two start to suspect they are pieces in a larger conspiracy - and the closer they get to the truth, the closer their worlds come to a shattering collision.
