In 'Whose Hello?', players step into the shoes of Max, an undercover conversationalist whose mission is to unravel the truth behind a peculiar societal phenomenon: people across the city have begun receiving anonymous 'hellos' mysteriously delivered by various objects—streets, books, digital screens, and even pigeons. As Max navigates through whimsical and surreal scenarios, players will engage in branching dialogues with eccentric characters, decipher cryptic clues, and utilize inventive strategies to trace the origins of these greetings. Each 'hello' contains a fragment of a larger conspiracy that unveils secrets about the city and its inhabitants, leading to a dramatic finale where players must choose who gets to keep their 'hello' and who doesn't.