In a world where people's emotions physically manifest as colorful orbs that can be exchanged, the player takes on the role of an emotion merchant navigating a city where trust is a currency and feelings can lead to betrayal. Players must engage in dialogues and scenarios with quirky characters, each possessing a unique emotional orb tied to their life stories. Explore the intricacies of human relationships as you help them resolve their emotional conflicts, all while seeking to uncover the mystery of a heart that can change shape and location. Make choices that influence your path, relationships, and ultimately, the fate of emotion itself in this vibrant narrative adventure.