The Niyotei Four Mysteries was a representative work of Japan, including " Demon Black Feather "," Index of Forbidden Magic Books "," Science Super Electromagnetic Gun ", and " A Science Super Electromagnetic Gun T ". These works all revealed some of the real problems in science, technology, politics, culture and other aspects of today's society. They also discussed and reflected on these real problems through magic, science and other elements. For example," Devil's Black Feathers " discussed the contradictions and conflicts between science and technology and magic in modern society, as well as the impact of science and technology on humans. " Science Super Electromagnetic Gun " reflected the political and cultural status and predicament of women in modern society through the experience of the protagonist, Misaka Mikoto. The Index of Forbidden Magic Books discussed the political, religious, and mystical forces in the school city, as well as the impact of these forces on human society. The works of Niyotei Shimi all had a certain degree of social criticism, reflecting some of the problems existing in today's society and exploring and reflecting on them through magic, science and other elements.