In a world where hearts can be swapped like trading cards, you play as a heart merchant navigating the underbelly of a city where emotions are currency. Players must interact with various characters to collect and trade hearts, each conferring unique abilities and emotional side effects. As you dive deeper into this macabre market, you'll uncover a conspiracy tied to your own heart's origins. Will you choose to give your heart to the one who deserves it, or keep it for yourself? Your choices will shape the city and determine your character's fate, all while balancing the dangers of heart thievery and the emotional consequences of your trades.