Set in the city-state of Prometheum, 21-year-old Leo Maquari is a skeptic living in a world of unknown. His mother's death deprives him of the only person who's ever cared for him. The aftermath deprives him of much more.
His culture believes the dead pass into the Underworld. Unable to accept she's gone, he decides there's only one thing to do: go and bring her back.