Merciless Vows (The Seven Deadly Sinacores Book 1)

He wanted my innocent sister to become his submissive bride. What he gets instead, is me. Forcing my father into a debt he cannot afford, the king of the Sinacore Mafia demands my twin as payment. But when she runs away in fear, it's up to me to save my father from certain death by sacrificing my freedom to a beast who has no idea I'm not the bride he bartered for.