Whose Hellos Are These, Anyway?

In a quirky town where greetings are a currency, you're a wisecracking intern at the Department of Greetings. Your job? Investigate a bizarre anomaly where people are mysteriously forgetting how to greet each other. Navigate the absurdity of this world, gather clues, and meet eccentric characters, each with their own peculiar interpretations of greetings. Delve into the heart of a secret society dedicated to crafting the ultimate greeting. Can you solve the mystery and save communication from collapse, all while keeping your sarcastic sense of humor intact?