Swentwight: a small city with the only library in the world. From agriculture, architecture, geography to history and literature, the city, where all the knowledge of mankind has been accumulated and monopolized, has been constantly aimed at for the sake of the surrounding powers' ambitions. And within, conspiracy haunts the Library City.

The story of the endless battle between Knight Commander Ignats and senior librarian Ardelheit, who protect the tremendous amount of books treasured and honored, begins.