May 10, X023, 5:46, Building B of the Teaching Building, Teacher's Office "Class B Group 2".
The slightly ajar door allowed a glimpse of the warm yellow light reflecting on Lin Yi's unexpectedly tense expression.
In Lin Yi's hands was a book resembling a modern Chinese dictionary; however, upon opening it, he discovered that the interior had been hollowed out and something else had been placed inside.
He retrieved the item from within, finding a set of documents enclosed in a file folder, folded neatly. The seal was left untampered, so it was impossible to see if it had been previously accessed, but Lin Yi was certain that Class Teacher-040 must have read it.
The only thing he was worried about now was whether Class Teacher-040 might have swapped out the contents.
He opened the folder and glanced inside. Inside were a stack of meticulously arranged sticky notes and a single thick, poster-like sheet, folded carefully.
