In a world where people communicate solely through their 'hellos,' a curious investigator stumbles upon a peculiar phenomenon: mysterious hellos are surfacing, each revealing a hidden truth about the speaker. Players take on the role of this investigator, navigating through a web of social intricacies and uncovering the secrets behind these enigmatic greetings. The game is filled with quirky characters, each with their own distinctive hello and a story that intertwines with the main narrative. Players must decipher the meaning behind each hello, collect clues, and make decisions that affect the unfolding mystery, leading to multiple endings.