In a world where emotions have become commodities, players assume the role of a Heart Broker—an underground figure who negotiates the sale and trade of emotions, represented by actual hearts, from one person to another. As the Heart Broker, you must navigate a labyrinth of quirky characters, emotional debts, and absurd situations, while deciding whose heart to give to whom to balance their lives or make a tidy profit. Each choice alters the emotional landscape of the cheerful yet bizarre cityscape, leading to outrageous scenarios, surprising character arcs, and ultimately a showdown with the Emotion Police. Will you secure a fortune or lose your own heart in the process?