Whose Hello, Anyway?

In a world where every person embodies a specific greeting, you wake up in an absurd town where the residents only communicate by exchanging odd hellos. Each resident has their own charismatic backstory tied to their greeting, and as the new visitor, you must navigate this quirky community to discover the source of a bizarre phenomenon that is causing greetings to fade away. Utilize your conversational skills, form unlikely alliances, and solve puzzles hidden within these whimsical interactions to restore the art of greeting and unveil the town's mysterious history.