In a world where emotions have physical manifestations, you play as a HeartMediator tasked with resolving conflicts between individuals by swapping their emotional cores. Each person’s core holds deep sentiments and memories, and by interacting with them, you'll uncover secrets, mend broken bonds, or even ignite new love. As you weave through an intricately linked narrative, choices drastically change the emotional landscape of Heartworlds, leading to dramatic and often hilarious outcomes that challenge your perception of love and empathy.