In a whimsical world where emotions have been extracted from people and manifested as physical hearts, players take on the role of a quirky 'Heart Merchant' who can trade and barter feelings. Your goal is to navigate a bustling city filled with eccentric characters, each missing their unique heart, as you help them reclaim what defines their essence. You must solve puzzles, engage in spirited dialogue, and make choices that will either restore emotional balance or cause chaos. The interactions shift based on the hearts you collect and trade, leading to multiple endings.