C1415 Backkill

The long and narrow tunnel was really dark. Ann Sudong suddenly thought of a problem as he walked down.

Xu Chengran and the others had already entered the tunnel. Not only was it narrow, but their line of sight was also obstructed. If someone were to ambush him at the entrance of the second floor, he would probably be tricked.

He was not someone who would fall short at the cost of his efforts