Whose Hellos Are These, Anyway?

In a bustling metropolis, you've stumbled upon a peculiar telegram service that delivers messages filled with only hellos. When you receive a cryptic note signed with a question mark, you realize that this is more than just an odd greeting service. As you navigate a web of eccentric characters and unexpected alliances, you'll reveal a plot involving an underground society that uses greetings as a means of sabotage and secrecy. Your objective is to unravel the mystery of these hellos before it's too late, engaging in witty dialogue, making alliances, and piecing together clues in this unique interactive text-based adventure.