Whose Hellos Are These, Anyway?

In a quirky small town where every resident mysteriously shouts 'Hello!' at the same time every morning, you play as a skeptical newcomer. However, when the town's beloved 'Hello Festival' approaches, every greeting starts to carry hidden messages and clues related to a 50-year-old unsolved riddle. As you navigate hilarious social interactions, engage in conversations, and decipher the meaning of these greetings, you must uncover the identity of the festival's secret mastermind before the festivities go awry. Engage with eccentric townies, gather laughter-inducing gossip, and leverage your witty charm to solve the mystery. Can you figure out whose hellos are more than just pleasantries?