Bound by blood. Forged in fire. Broken by truth. For centuries, the Crimson Accord kept the kingdoms at peace-a pact sealed in magic and sacrifice. But when the blood oath is broken, an ancient darkness stirs, threatening to tear the realm apart. Power always has a cost. And some crowns are paid for in blood.

To prevent war between two of Europe's most powerful mafia families, a binding alliance is forged under the ancient underworld law known as The Marriage Act-a contract that mandates marriage between heirs of rival houses. Enter: Florencia Zalda Bavga - The icy, brilliant heir of the Bavga syndicate. Raised in a glass palace of spies, poisons, seduction. Leonello Aldo Ardemanni- The calculating, emotionally walled-off Ardemanni heir. Trained in silence, shadow, and war. The world thinks it's a love match. In truth? It's cold-blooded politics in white silk and gold rings. But someone wants the alliance to fail. An attempt on Florencia's life shocks the underworld. Now, she and Leonello must become a real couple-at least in appearance-to uncover who wants them dead and why. Their survival depends on trust. But trust is the one thing they never agreed to.