Devil's Day was a famous online novel written by the author, Wang Yu, in 2008. The story was about a human youth with magical abilities, Yun Fan, who finally became a hero after experiencing hardships after crossing into another world. The Devil's Sky Record had a very high reputation among the readers as a classic fantasy novel. The plot was full of ups and downs, the characters were vivid, and the descriptions of magic skills were wonderful. It was a very popular fantasy novel. However, everyone's views on a book are different. The readers can decide whether they like the Evil Sky Record according to their own preferences.