In a world where emotions are commodities and hearts can be exchanged, you play as Aveline, a talented Emotion Broker. Your job is to facilitate heart trades between clients, each representing a unique emotional state. However, a shadowy figure emerges, threatening to disrupt the delicate balance of emotion in the city. As you navigate through love, envy, joy, and despair, you must unravel the mystery behind this menace while deciding who gets to keep their hearts and who must let go. Your choices shape not only the fate of your clients but your own heart's destiny, leading to dramatic consequences and unexpected alliances.