In 'Hello, Who Dis?', you play as a bored office worker who stumbles upon an ancient smartphone at a flea market. Upon powering it up, the phone begins to receive mysterious text messages from various historical and fictional figures, each with their own problems that need solving. Navigate hilarious and dramatic conversations as you decide whom to help and how, while unraveling a greater mystery behind the phone's origins. Your choices shape the outcomes and interactions, leading to comically absurd scenarios that blend history and modern life.