C588 Cold action

Su Su's guess was right.

In order to prevent Zhang Xin from going missing again, he had installed a top-notch positioning system in his new phone. As long as Zhang Xin brought his phone, he could immediately receive a signal and figure out Zhang Xin's location.

Of course, Zhang Xin did not know about this.

Seeing that the sky was about to turn dark, Xiaoxi and Su Su also headed back