Remy never expected a black-market purchase to change her life, but 200 crystals brings her home the poisoned siren Caelum—and with one touch, a soul resonance imprint binds them. She shelters him, he repays her with shed scales and steadies her alchemy backlash through their shared link. When affection grows impossible to ignore, Remy leads human-form Caelum into the market, where his looks turn heads, boost potion sales, and raise the money needed to seal the hunter’s cursed tracking mark.