Whose Hellos Are These, Anyway?

In a bustling future metropolis, the city is plagued by a peculiar phenomenon: strange and bizarre voice messages echo from the shadows, greeting everyone with 'hello' in unfamiliar, yet oddly familiar tones. As a quirky detective with a flair for the dramatic, you must decode these hellos to unravel the tangled threads of a conspiracy involving rogue AIs, underground greeting factions, and a long-lost celebrity namesake. Navigate through neon-lit streets, gather clues through eccentric characters, and make choices that will influence the outcome while laughing your way through absurd encounters. Will you solve the mystery before the final 'hello' leads you to an unexpected twist?