Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.
The third prince, Grace, who was born in a troubled world and a country with all military power, was given the gift of the 『 World Library 』, which has no fighting power. Grace tries to explain his usefulness by using the knowledge of the 『 World Library 』, but he continues to be compared to and ridiculed by his two brothers with excellent fighting power, such as 『 Kensei 』 and 『 Masei 』, and is banished to an undeveloped land. Grace, who was forced to explore the land full of demons with a little companion, is faced with a girl who lies sleeping in ruins. "Go Rem in a place like this?" "I am Galatia. not Go Rem, it is a robot." By touching a girl who calls himself a robot, he became aware of the existence of knowledge of a different world. By the 『 World Library 』, he became able to learn not only knowledge of this world but also knowledge of another world. In this way, he mixed knowledge of a far more civilized different world with knowledge of this world, and knowledge of this world, to mass-produce rifles, to develop agriculture in a way unthinkable by conventional common sense, to create a new metal called Mithril alloy, and to develop his territory at an unstandard speed, including the "Industrial Revolution."