Whose Hellos Are These, Anyway?

You awaken in an odd, ever-shifting city where every 'hello' you hear leads you deeper into a labyrinth of comedic misunderstandings and bizarre characters. As an unremarkable postal worker whose concept of normalcy has now been hilariously upended, you must navigate through quirky conversations and riddles while uncovering the origin of the strange hellos that echo through the streets. Can you uncover the truth amid the chaos while maintaining your sanity in this whimsical world?