In a world where emotions can be harvested and traded, you play as an emotion broker in an underground community that specializes in 'heart deals'. Each heart you acquire comes with its own quirks and backstories, as they belong to various characters—ranging from a lovesick poet to a bitter comedian. Your task is to navigate through chaotic transactions, unexpected alliances, and emotional crises to gather the most powerful hearts while keeping your own emotions in check. Will you get tangled in their lives, or will you stay an unfeeling businessman? The choices you make affect not only your fate but the societal balance of emotional exchange.