Three years as a combat medic in an underground bunker, and Dr. Aria Chen's greatest mistake wasn't the lives she couldn't save—it was saving the one she should have let die. When enemy Commander Kade Reinforcer collapsed on her operating table, she made a choice that would haunt her: she kept him alive. Now the war is over, and instead of gratitude, she's rewarded with chains in the very room where she performed that fateful surgery. As her former patient turned captor watches from beyond the steel door, Aria realizes that some debts can never be repaid, and some enemies will never forgive you for showing them mercy. In a world where survival meant choosing sides, she chose humanity—and humanity has abandoned her.