In 'Whose Hello?', you play as a charismatic detective in a quirky city where every resident has a peculiar obsession with greetings. When an eccentric mayor is found unconscious during the Grand Greeting Festival, it's up to you to navigate a web of colorful characters, each with their own secret wish to say the perfect 'hello.' Using your wit and charm, interact with suspects, gather clues, and solve the mystery behind the mayor's predicament before the festival finishes, or the town's greetings will be forever altered. Will you crack the case and restore the harmony of salutation? Or will you become part of the mystery yourself?