C228 I Came Here Before
Other than the material of the metal plate, it was exactly the same as the plate in Hsu Yuvran's hand.
Seeing the metal plate that was completely embedded in the Air Wall, it was obvious that unless one broke the Air Wall or the metal plate, they would not be able to leave this 'shroud'.
The creator would definitely not leave such a clear loophole for the people inside the shroud to exploit