User blog comment:B214/Volume 23 discussion blog/@comment-30924344-20170405170030

Okay because the only and probably one and only wish that was revealed for winning the Azazel Cup was Dulio's and Rudiger's, that quite clearly to me states right there the wish that will be answered and the person expressing the wish will be either Issei or Vali or both. The next generation are the most important for all mythologis because it keeps their species alive, but also, powereful Sacred Gear wielders are reincarnated too. So preventing children like Rudiger's from dying due to their SG's not only saves the children's lives, it saves everybodies lives in some way. Why Issei and Vali would be the ones giving the wish is because this arc is named after them and since we are in a tournament style ending, the final match of the RGWT will obviously be between the two named arc characters and their teams. Issei is a hero to all children in the Underworld and Vali understands just as much as Issei the importance of family. The two end the arc while at the same time, starting a new chapter for the next generation and this will gain Vali fame as a hero of children just like Issei too. Vali will get his own show rivalling Issei's called the "Butt Dragon Emperor Show" lol.