Although the rules of the challenge described in the book are riddled with loopholes, as long as someone with the right intentions takes advantage of them, the entire competition could seem unfair and unreasonable. However, the author cleverly describes the background of the Eighth Epoch as harmonious and friendly, people maintaining a positive attitude. So even if there are many loopholes in the settings, no one in the grand environment will exploit them, and there won't be any problems.