User blog comment:Ultraprime2/Fairy Tail Wikia Podcast 8/6/2014/@comment-2214433-20140609200817

As for one of you commenting that the Part 4 section title obviously refers to Silver and Gray... I still hope that isn't the case. Apparently, the title can also be translated as 'Father and child' rather than 'Father and son' and seeing that we are getting into Erza vs. Minerva... A flashback on Jiemma abusing Minerva, anyone? :D