Devastate (Aiko Rising Book 1)

Aiko came home to find her parents murdered and the killers gone without a trace. The court handed her to her mother’s best friend—a woman with a mansion, a cold smile, and plans of her own—and barred the one man who could protect her: her uncle, a former assassin. So he trains her in secret. Powerful people want Aiko. Not one of them will say why.