In a world where hearts are commodities, players take on the role of Tia, a cunning 'Heart Thief' in a bustling city where hearts can be swapped, sold, or stolen. When Tia wakes up one morning to find her own heart missing, she embarks on a thrilling quest to recover it while navigating the treacherous underbelly of heart traders. Players will make choices that affect Tia's relationships, confront morally ambiguous characters, and uncover a conspiracy that involves a rogue faction trying to control the heart economy. With multiple endings based on the players' alliances and decisions, every heartbeat counts as Tia races against time to retrieve her true self.