In a quirky, ever-changing city where people mysteriously vanish every time they say 'hello', you play as an amateur detective with a penchant for puns and a nose for trouble. You navigate a labyrinth of eccentric characters, each with their own outlandish theories about the disappearances. As you gather clues, decode mysterious greetings, and confront shadowy figures known only as the 'Salutations Society', the narrative branches in unexpected ways based on your choices—altering friendships, alliances, and, ultimately, the fate of the city itself.