User blog comment:FairyRaven/Fairy Tail Chapter 363: The Stories That Demons Read, Review and Commentary/@comment-27.106.106.39-20131206123649/@comment-4829046-20131206124020

You noticed that only now? And technically, Minerva looked like Ultear and Sayla looked like Minerva when she was first seen. So indirectly all of them look alike.