In 'Who Said Hello?', players step into the shoes of an eccentric private investigator in a bustling metropolis where social interactions are heavily regulated by an authoritarian government. One day, the investigator receives a mysterious voice message saying nothing but 'hello.' This simple word initiates a thrilling investigation, leading players through a labyrinth of undercover agents, quirky characters, and a clandestine community that communicates in punctuated whispers. Along the way, players must gather clues, make choices that affect their alliances, and unearth the deeper significance of the 'hello' in a world where speaking freely is a dangerous act. Immerse yourself in a narrative filled with humor, intrigue, and unexpected turns as you strive to solve the riddle behind the greeting that could change everything.