MTL - I Have a Big Problem with My Achievement System - Chapter 402 How should the superb iron head skill be used in actual combat?

... i Mao, please use any door and go to Shangxuanyuan to help her get it...

"Little Marquis, hurry up, it's our turn to patrol."

"Where am I?"

Qin Hu sat up in a daze, feeling cold on his body, and the wind was blowing outside, and suddenly felt strange in his heart.

"Oh, little Marquis, why are you confused? We are in the barracks. It's our turn to send guards at this hour. If you can't afford it, the military law will deal with it. Now the old Marquis can't protect you ...