Mu Sijue knew very well it was not on that day that Xu Youning had found out the debris.

It had been about three months since they had gone to the collapse site for the first time.

During the past three months, there had been hard rains and heavy snows in City A. However, the debris did not seem to have been eroded by the rain or snow, and it was likely that Xu Youning had smeared the dust on its surface.

Although Xu Youning made a mistake, Mu Sijue ...