User blog comment:Jackofalltrades9X/Enemies of the Holy War/@comment-4784862-20150914143214/@comment-26927386-20150916011641

As you said, I thought that the Book of Psalms only allow those whoose fate is somehow connected to Rou's are able to his title as a World Enemy. But Othanos brought up a good subject, was Rou really given the title World Enemy-The Gluttony. If you reread the contents of Day 245 and further it seems like Rou gain an special skill named World Enemy - The Gluttony which is similar to his Absorption ability instead of recieving it as a title.