In 'Whose Hello?', you play as an eccentric private investigator in a quirky, dystopian city where greetings have power. When the city's inhabitants start mysteriously losing their ability to greet each other, a wave of social chaos ensues. With your trusty sarcastic sidekick, a sassy AI named C.H.A.T (Conversational Humor and Telemetry), you must unravel a web of intrigue that involves an underground greeting smuggling ring, a disgruntled poet, and a shadowy figure known only as 'The Salutation'. Your choices lead you through a series of zany encounters and thought-provoking puzzles, all tinged with dark humor and a sense of urgency. Will you restore the art of the greeting before the city becomes a gloomy social nightmare?