In a world where emotions are currency and hearts can be swapped like trading cards, you play as Vesper, a charismatic 'emotion broker' who accidentally gets involved in a murder investigation after one of your clients turns up dead. As Vesper, you must navigate a morally ambiguous city where trust is scarce, and every character you meet has a heart to sell or a secret to hide. Will you trade your charisma for clues, forge alliances with unreliable characters, or risk your own heart to uncover the truth? Your choices will drive the narrative, leading to multiple endings based on the paths you choose and the hearts you swap.