In a bustling metropolis where everyone seems strangely overly friendly, players assume the role of a cynical private investigator who has to navigate through a series of bizarre social encounters. When a mysterious package containing a strangely charming assortment of greeting cards arrives with only the phrase 'Whose hellos are these, anyway?' written on it, the investigator is drawn into a whirlwind of eccentric characters, hidden agendas, and laugh-out-loud scenarios. Players must gather clues, converse with quirky inhabitants, and piece together the true identity of the sender while managing their own sarcastic responses to the absurdity around them.