In a world where people can metaphorically 'borrow' hearts to feel emotions more deeply, you play as a Heart Broker who must navigate the whimsical, yet treacherous realm of emotions. As a Heart Broker, you manage a quirky shop filled with hearts of different shapes, colors, and emotional weights. Customers come in looking to borrow or trade their hearts for various emotions depending on their current life crisis. Each encounter with a customer presents a dialogue-driven challenge where you must choose the right emotional heart to match their needs, while simultaneously solving mystery threads that threaten the balance of emotions in the world. Will you use your charm to become the most renowned Heart Broker, or will your journey take a dark turn through the tangled webs of human feeling?