Whose Hellos Are These, Anyway?

You awaken in a bustling city at the heart of an absurd mystery. Every time someone greets you, their 'hello' echoes in the air, triggering bizarre events and revealing comical secrets about the townsfolk. As you navigate through the quirky community, you must piece together the truths behind these enigmatic greetings, interacting with eccentric characters and uncovering their connections to a missing artifact. Will you solve the mystery before the town's greeting festival descends into chaos?