C1410 How Shameless

"Why did it close?"

Arriving at the entrance to the ninth floor, Wu Yuan discovered that the black copper door was closed.

The huge black copper door was closed. He moved closer to take a look. First, he gently pushed it. He did not expect that there was no reaction. Then, he waved his fist and hit it. It was also useless.

"What a solid copper door!"

Wu Yuan was secretly shocked