User blog comment:IamJakuhoRaikoben/Chapter 388: Erza vs. Minerva, Review./@comment-86.70.179.8-20140614135012/@comment-4829046-20140614151447

Not that. She should at least had a bewildered expression and thought like "Wait the CSK? How did he get to Earthland?" Or just "The CSK?!" and then just continue to glare at him. This means they are aware it was CSK that freed them and Minerva probably saw a glimpse of him as she was looking around the destroyed Plutogrim.