Between the layers of leather was a yellowish piece of paper as thin as cicada wings!

Although it was dry, it was much softer and flexible than normal paper. Yet, the thin-looking paper felt as heavy as a plate of iron in my hand.

I was puzzled. I didn’t know any type of material that could create this sort of paper.

I handed the piece of paper to Senior Shu. He also looked confused and turned the paper in his hand. Eventually, he shook his head. “I don’t know this thing.”

Zhang Ai was curious. “How could this thing be inside my shoe? Is that some kind of new shoe material?”

I suspected that this girl had only muscles inside her head. Until this moment, she hadn’t noticed that someone had cursed her. I felt the need to remind her, but she didn’t believe me. She thought that I was envious and wanted to vilify that trainee.

I was too lazy to quarrel with Zhang Ai, so I carefully wrapped the piece of paper.

“Ah! I just...