User blog comment:FairyRaven/Fairy Tail Chapter 425: Sabertooth X792, Review and Commentary/@comment-24784846-20150324024207/@comment-5894890-20150325014152

I'm guessing someone edited it? but the link says: "(Story only; art by Yūsuke Shirato)". And I would have doubted anyways, the art style, as well is writing is very different from each other :P.