C277 Abdominal back enemy

After everything was ready, Su Min followed the array formation and stuck a few peach trees on the ground. Then, he used the red thread Chuanyin and finally put the seven copper coins on the line. After tying up the end of the red line, the seven copper coins immediately began to spin and move on the red line.

I do not understand much about formations, but from Gu Yuning's gaze