Whose Hellos Are These Anyway?

You wake up in a bustling city where everyone's greetings are stolen words. As the newly appointed 'Hello Investigator', your task is to navigate through a labyrinthine network of social interactions, piecing together disappearing greetings and uncovering the dramatic story behind the city's silence. With the ability to interact with various quirky characters, each holding secrets and backstories, you'll make choices that affect the outcome of the investigation. Can you unravel the enigmatic plot while charming your way through absurd social dilemmas?