In fact, the old man was not the only one who was shocked. Even Yan Gu, who had been watching from the side, couldn't believe what he was seeing. The formation that even he, Yan Gu, couldn't break had been effortlessly shattered by Zeng Yu.
If he hadn't seen it with his own eyes, Yan Gu would never believe that such a formation could be broken by such a young girl.
"Jin'er, who is this little Yu?" Zhao Xu also looked at Nan Jing in surprise and asked.
"I'm not sure! But I'm certain that this little Yu is not as simple as she seems. She can use formations so well, we need to check her background when we get back," Nan Jing said gravely, shaking her head as she spoke in a low voice.
"Hmm!"
Zhao Xu agreed with a nod.
