Look at this huge hole.

These are such important documents too. How terrible.

Oh my... perhaps there's bookworms about?

No, it can't be that, right?

It's pretty obvious that it was cut by some instrument or the like.

Come to think of it...

YESH!!!

Do you have any ideas...?

The last person tasked with document organization was Takanami-san, no?

Umm....

Reference Number: ZERO-SEVEN-ZERO HARUKAZE