Whose Hello Is It Anyway?

Step into the role of a quirky detective in a bustling metropolis where greetings hold mysterious powers. As the 'Greeting Guru' of the city, you must uncover the origins of a bizarre phenomenon where people's lives are inexplicably altered by the 'hellos' they receive from strangers. Engage with an array of eccentric characters, solve puzzles, and navigate a series of humorous scenarios that delve into human interaction, all while piecing together a mind-bending conspiracy that threatens social norms. Your ability to observe and deduce will determine the fate of greetings in the city! Can you keep your cool while the world gets hilariously tangled?