In a world where the ancient art of heart-switching is not just myth but a reality, you play as a disillusioned doctor in a dystopian city that harvests hearts from the living. The game starts when you accidentally switch hearts with a complete stranger during a chaotic protest. You must navigate through a web of conspiracies, personal secrets, and moral dilemmas that test the boundaries of your ethics. As you experience life through the lens of another's emotions and memories, you will encounter other heart-swapped individuals: from a heartbroken musician to a ruthless politician, each providing puzzle-like narratives about their struggles and desires. The choices you make will redefine who you are and what it means to truly connect with others, culminating in a dramatic revelation about the origin of emotions and identity itself.