C428 The Inheritance of the Magic Circle

"This legacy crystal was obtained by my master when he was adventuring in the Celestial Domain. It contains a large amount of knowledge about magic circle, and it can allow you to cultivate to the Celestial Venerable Realm. The strongest magic circle recorded in it can easily kill the experts of the Celestial Venerable Realm, and it is extremely terrifying. Even in the vast Celestial Domain