C2421 Creek(2)

"You take a few steps back, I have an idea to verify"

Ye Fei let out a breath and stood up.

"Hmm?"

Gu Yan couldn't help but be stunned, but he still obediently stood to the side.

After that, Ye Fei looked around and followed all the steps that Xu Shiji did. He repeated the steps like a cat drawing a tiger, and when he walked back to the starting point step by step, when the last step landed