Many people think that our universe and world are unique, but this is not the case. In the macrocosm, the world is composed of many different dimensions, and there are many other dimensional worlds besides the real dimension. Every time A world has completely different rules and structures, and the world is separated by the wall of time and space, so that there will be no intersection between worlds of different dimensions under different rules. However, using a magic called summoning Spells, people summon creatures from different dimensions into the real world. People with such power and knowledge are called summoners. The book of other worlds is the carrier that records the knowledge of summoning. Please be careful with you Everything you see next, because they are likely to take you into a world beyond your imagination. PS: Book friend group number: 285461405. Please indicate [book friend] when joining the group.