In a world where emotions are traded as currency, you play as an ambitious Heart Merchant who accidentally acquires a heart with the consciousness of its former owner. As you navigate through the bustling Emotion Exchange, you must forge alliances, uncover dark secrets, and deal with a rogue faction that wants to control the heart's powers. The main character can communicate with the heart through dialogues, allowing players to choose how to respond to its desires and memories, ultimately deciding whether to sell, save, or bind the heart to yourself.