In a dystopian future where emotions are commodified, you play as a heart-merchant who trades the emotional cores of individuals for riches and status. One day, you accidentally swap your own heart with one that possesses memories and feelings far beyond your own. Suddenly thrust into the lives of strangers, you must navigate the complexities of their emotional entanglements while grappling with your own identity and the fate of your heart. Choices you make will determine whether you become a savior of the emotions you possess or a mere merchant in the trade of souls.