C3167 Mysterious Infiltration

"I'll go! Father, it's fortunate that you didn't come. Otherwise, you wouldn't have been able to enter at all. " Steel Bullet said to Guu Feng.

"Cut the crap. These are all drainage pipelines. If a person can climb in, what's the point of building them like this?"

Guu Feng said helplessly, "You should go in quickly. But for safety's sake, you should find the smallest pipe to go in