C532 Forbidden Divine Demon Sealing Origin Formation

"Nether Elder, just now you said you wanted to prepare a peerless formation. What kind of formation is this? What is it used for? Is it for defense?" Gu Yi asked curiously.

He had originally wanted to leave the capital, but Nether Elder had said that he would set up a grand formation and had him wait for a moment. He had no choice but to stay behind