In a sky-bound city where power is measured by the strength of one’s Spark, Lyria Arden becomes dangerous the moment her rare ability awakens. Her Spark doesn’t burn or strike—it connects. Marked as unstable and watched closely by the academy, Lyria is placed under the protection of Kairo Vael, a disciplined Sky Blade wielder known for control, precision, and emotional distance. Their forced partnership is meant to contain her power—but instead, it creates something no one expected. A bond that reacts to emotion. A bond that strengthens under trust. And a bond that draws attention from forces lurking beyond the city’s light. As Nuller attacks spread through academy grounds and city districts, Lyria and Kairo are pushed into battles neither is prepared for. Each time they fight together, their bond grows stronger—and more dangerous. Control begins to slip. Emotions bleed into power. And the line between protection and dependence starts to blur. Because in a world where connection is treated as weakness, their bond might be the key to survival… —or the reason everything falls apart.