Whose Hello?

In a world where greetings hold mysterious powers, you step into the shoes of a professional 'Hello-teller'. Your job is to decode the nuances of various greetings, unravel enigmatic relationships, and get to the bottom of an impending disaster caused by a rogue greeting. Along the way, you must navigate quirky characters, bizarre scenarios, and hilarious miscommunications while piecing together the clues hidden within every ‘hello’. Will you be able to save the world from the catastrophe of forgotten greetings?