From the first chapter, you can tell that this book is something different. The writing quality is excellent, and the story advances steadily, not too fast and not too slowly. Most, if not all, characters have a good design and are introduced into the book reasonably. The main characters' powers just don't come from defeating monsters in a dungeon but also have a unique twist on it, which is very cool and versatile. In the future, there are many ways that I can think of that the main character can use to become stronger and more powerful if he wishes to do so. The world's background is alright. There are not enough chapters to give a valid opinion yet. Overall, I think this book deserves 5 stars, and it has a lot of potential to live up to.