In a bustling metropolitan city, the protagonist, a cynical yet charismatic private investigator, receives a perplexing mystery: a series of anonymous hellos are being sent to various people, causing confusion, laughter, and even chaos. The investigator must navigate through quirky neighborhoods, each with its own eccentric characters who may hold clues about the mysterious sender. Players will make choices that influence interactions and uncover revealing backstories while trying to solve the whodunnit amidst growing hilarity.