In 'Whose Hello?', players assume the role of Jake, a down-on-his-luck private investigator in a city where everyone seems to know a secret. One day, he receives an anonymous message simply saying ‘Hello.’ Intrigued and slightly confused, Jake embarks on a whirlwind journey through the city’s bizarre underground — from eccentric aristocrats to talking animals in a speakeasy — all while trying to decipher the meaning of the message. Along the way, you’ll make choices that lead to various outcomes and humorous scenarios, unlocking the mystery of 'Who said hello?' and why it's sparking chaos across the city.