In a world where people's emotions are tied to physical hearts that can be swapped, you play as an Emotion Engineer who has the unique ability to manipulate and exchange hearts among individuals. One fateful day, a routine heart exchange goes horribly wrong, causing chaos and emotional turmoil throughout your city. As you navigate the aftermath, you'll interact with a cast of eccentric characters, each with their own emotional agendas and dramatic backstories. Your choices will determine not just who regains their heart but also the fate of the city's emotional balance. Solve mysteries, mend broken connections, and uncover deep secrets as you decide whose heart to keep, trade, or give away for the greater good—or your own twisted ambitions.