Yang Junmo, number six, was the first to respond: "That's a dumb question. The Foundation Establishment Realm can take flight, while the Tongxuan Realm can burrow into the ground. Have you not yet achieved the Tongxuan Realm?"
Those in the Foundation Establishment Realm can execute Sword Flight, and when one's cultivation reaches the Tongxuan Realm, they are able to practice the Earth Rune technique. Flight and earthburrowing are the trademarks of these two realms.
"Don't you think I know that Tongxuan Realm allows earth burrowing? The question is, can you burrow a hundred meters into the ground?"
Although he was indeed the only one in the group who had not achieved the Tongxuan Realm, Su Chengyu persisted stubbornly, refusing to admit it.
