In a bustling metropolis where hearts are physical objects sold in shops, you play as Cassie, a heart dealer who specializes in 'heart-a-longs'—hearts with a story to tell. One day, you find a heart with a complex web of emotions linked to its previous owner. As you dive deeper into the tangled connections, you uncover a series of romantic entanglements, unexpected betrayals, and revealing secrets. Along the way, you must navigate the intricate relationships of others while making choices that influence your own feelings and your connection to the hearts you encounter. Will you restore the hearts to their rightful owners, or will you keep one for yourself? Every choice has a consequence, and in this world, emotions can be both a gift and a curse!