In a world where greetings can hold ancient powers and secrets, players assume the role of a disgraced former linguist, Eric, who has to navigate a bustling metropolis to uncover the source of a nefarious greeting contagion. People are mysteriously losing their memories, their identities erased with each 'hello' they exchange. Eric must connect with a diverse cast of characters to solve riddles, unlock hidden meanings behind common phrases, and ultimately confront his own past. Your choices affect relationships, leading to multiple endings based on how well you navigate the web of social intricacies and linguistic puzzles.