"X, why is this door closed?"

Mu Nan knitted his eyebrows and stood alone by the door, scratching his head. The refined steel door was a top-grade password lock with first-rate equipment. Not only did it prevent people from entering, it also prevented people from getting out. Even if she became Iron Man, she could not open it.

Gu Yu Ze slowly walked over and threw a large towel on Mu Nan's wet head. He pretended to look at the door with regret and said, "The door ...