In this book, because it is an otherworldly relationship, some of the war equipment that appears will inevitably be different from those in history, and if there have been changes, I will explain them here.

Every time it appears, there will be a relevant introduction, so let's share the crystallization of the great war of ancient times with all book friends. The wisdom of the ancestors is indeed admirable, and I am often afraid that I will not be able to write the taste inside.