Masterpieces born from human civilization's history—The Divine Comedy, The Theory of Evolution, Encyclopaedia Britannica, Relativity—possess mysterious and unpredictable powers in a different world! The power of original sin, biological evolution, mastery of all arts… By reading these ancient texts, one can gain all sorts of power! The only problem for the people of this world is that they have difficulty understanding Earth's languages. Then, a librarian arrives from Earth...