C1271 Evacuate the People and the Old Demon Appears!

"Spirit Formation?" Ye Fann was a bit surprised.

Yan Chixia, on the other hand, could not see anything, and asked blankly, "What is a barrier?"

To put it bluntly, a barrier was a type of profound formation. This formation contained the laws of space and could only be passed down for thousands of years in an immortal gate