Tap, tap, tap...
A series of rapid footsteps resounded from the outside.
Immediately after, Chen Hao and the others saw many figures darting around outside the mine, led by a person at the front, striding quickly into the mine.
"Dad!"
Through the bright light of the mine entrance, Su Yan saw the middle-aged man leading the group and exclaimed with surprise.
Having just experienced a life-threatening danger, Su Yan felt an immense appreciation for what she currently had.
The middle-aged man leading the group was none other than Director Su Zhengguo. After walking over, he first looked over his daughter and, seeing that apart from being somewhat disheveled, she didn't seem to have any serious problems, he breathed a sigh of relief.