C30 Horrifying Technology

Lin Jing's eyes slightly narrowed, but he didn't think too much and nodded. He walked to the door and found that there was no keyhole, neither was there a handle, nor even a crack in the door. How do I open it, directly push it?

He reached out his hand to push the door, but it didn't budge at all. Now, Lin Jing was in a difficult position.

At this moment