In a bustling city where every interaction is recorded and memorized, you play as a professional 'Hello Collector', tasked with retrieving the forgotten hellos of people who have vanished without a trace. Your journey takes you through the twisting alleys of memory and identity as you piece together fragmented relationships, confront your own lost connections, and navigate a digital world that clings to the past. Every hello you recover provides a clue that leads you closer to unraveling a conspiracy that threatens to erase the very essence of human interaction, all while attempting to discover who you truly are amidst the chaos.