Whose Hello, Anyway?

In a world where everyone has been mysteriously given the power to communicate only through bizarre and nonsensical greetings, you play as a hapless detective. Your job is to navigate the chaos of this strange phenomenon and uncover the culprit behind the Greetings Plague. As you interact with quirky townsfolk and solve tongue-in-cheek riddles, you must decipher their absurd salutations to gather clues. Will you crack the case or will you be left saying 'Hello?' in confusion?