In a world where emotions are physical entities that can be swapped, stolen, or gifted, you play as a 'Heartbroker', someone who trades in the heartfelt connections of others. The story kicks off when you stumble upon a hidden heart exchange market that risks balancing the emotional ecosystem of society. In this intricate web of relationships, you must navigate through the tangled lives of various characters, each with unique emotional values, and decide whether to deepen connections, mend broken hearts, or exploit their vulnerabilities for personal gain. Your choices will affect not only your life but the hearts of those around you, leading to multiple branching paths and endings based on the emotional debts and treasures you accumulate.