In a world where emotions are traded as commodities, players assume the role of Aria, a heartless scavenger who stumbles upon a black market dealing in stolen hearts. Tasked with solving the enigma of a mysterious heart that grants the ability to feel emotions for the first time, players must navigate a web of deceit, make alliances with quirky characters, and uncover the hidden truths of their own past. As they delve deeper, players will find that each heart has its own backstory and desires, leading to choices that affect not only Aria's emotions but the broader world around her.