Gu Xiaonuan couldn't make out what was being said inside the office, blaming the exceptionally good soundproofing of the office.
Li Lu had been ordered by Gu Xiaonuan to keep watch outside, but it was unlikely anyone would come looking for Chu Yunxiao in his office at this time.
Li Lu threw a puzzled glance at Gu Xiaonuan—she couldn't be doing this on purpose, could she?
Gu Xiaonuan listened intently, despite hearing nothing at all.
But suddenly, Li Lu came over and pressed her ear against the door, joining her in eavesdropping on the sounds from inside.
If someone were in the surveillance room now, they would see two suspicious female students with their ears tightly pressed against the door of a teacher's office, looking all sneaky.
Gu Xiaonuan had Li Lu keep watch by her side, but who would have guessed that Li Lu would come over and join her in secret listening.
