In 'Hello, Who?', you find yourself in a bustling, futuristic metropolis with a twist: every citizen has lost their memory, including you. As a private investigator, you must navigate through quirky neighborhoods, unlock secrets about your past, and unravel a conspiracy that affects the entire city. Use your wits and the power of dialogue to interact with eccentric characters who may hold the key to your memories. Choose your responses carefully, as each decision impacts the narrative and the fate of the city's inhabitants.