In a bustling, futuristic society where technology advances at the speed of thought, you find yourself as a 'Heart Broker'—an underground agent specializing in emotions. After a freak accident during a heart-transfer operation, you wake up with the heart of a notorious criminal, leading you to navigate a complex web of personal relationships, moral dilemmas, and unexpected alliances. As you create connections with the vibrant characters you encounter, you'll face choices that could either heal or destroy not only your newfound life but the lives of those around you. Every decision weighs heavily as you uncover the truth behind the heart you possess and the past it carries.