C1077 Mysteries of the Cave Realm

Cao Yongnian laughed bitterly, not to mention Guan Yuwei, just with his own strength, it was extremely difficult for him to leave a sword mark on the Dragon-Breaking Stone, even for Guan Yuwei, she did not have absolute confidence in doing so. Of course, if the two of them worked together, there was no problem to leave a sword mark on the Dragon-Breaking Stone