Whose Hello Are These, Anyway?

You are an amateur detective in a bustling metropolis filled with quirky characters and bizarre occurrences. One day, you receive a mysterious package containing a series of cryptic voice messages from unknown senders saying 'Hello' in all sorts of unexpected situations. Your task is to track down the sources of these hellos, uncover the underlying stories, and solve the bizarre mystery connecting them all. Navigate through the city, interact with eccentric locals, and piece together the puzzle before time runs out. Each hello could lead you to laughter, danger, or a shocking revelation!