Whose Hello is it Anyway?

In a quirky, technicolor city where greetings can spark intrigue and chaos, you play as a professional 'Greeting Interrogator.' Tasked with resolving a series of baffling cases where greetings have gone awry, you navigate through a web of eccentric characters, each with their own unique style of hello. Uncover secrets hidden in their hellos, unravel mysteries, and even manage impromptu greeting battles in a world where the wrong 'hi' could ignite a feud or a laugh. Can you solve the ultimate riddle: whose hello is it anyway?