In a world where secrets are the currency a small group of Existences who refer to themselves as the Hidden have stepped away from a society that trades in others' secrets. Extractors are a field in the government who remove secrets that have the potential to be dangerous for society. When the Hidden is overrun and all of the inhabitants are forced to reveal their secret, one girl sits crouched in a cell deciding to play the Extractor's game and see if the power of her ancient secret is greater than the power of the government and the society she lives in.