"I don't know. Suddenly, such a sentence popped out of my head!"

Ye Cheng stared at the hexagonal box and pressed the circular pattern on one side with one hand. From entering the black forest, there were many such circular and dense patterns along the way. So Ye Cheng took this as a revelation. This pattern must play an important role here, and Ye Cheng's idea is correct.

The box crackled, one side unfolded, and slipped away from the other side, popping out a cylinder with countless holes of different sizes on it.

"It's beautiful!" When the white moon came up, she couldn't help laughing.

In the cylinder, there is...