Set in a quirky, post-apocalyptic world where silent whispers have taken over the landscape, players take on the role of a mismatched group of survivors on a mission to uncover the identity of the mysterious figure known only as 'Hello.' As they navigate bizarre towns and eccentric characters, players must solve riddles, engage in humorous dialogue trees, and piece together clues to reveal the persona behind the salutation. The choices made will affect the group's dynamics, the environment around them, and ultimately, the fate of their curious quest.