To avenge her slaughtered siren clan and sister, who was brutally dissected for the immortal Tidepearl, twin siren queen Sereia abandons her tail and sneaks into the royal palace as a dancer. Mastering dark blood sorcery and shadow magic, she unleashes fatal charm on King Aldric. She plants a phantom womb hex on the cruel Queen Isolde, manipulating the palace’s power struggles. Blending addictive love and ruthless vengeance, she plays a deadly game, determined to burn the treacherous human kingdom to ashes and make every murderer pay dearly.