The monitor dragged the time bar on the video to after the bell of the self-study class, and scenes from about ten minutes ago came into the Class Teacher's view.
He saw that not long after standing on the podium but before he could say a word, the eight stalwart students stood up almost simultaneously from different positions around the classroom.
The Class Teacher unconsciously clenched his fist because he realized that although he had heard a sound ten minutes ago, now he didn't hear any.
His eyes never left the phone screen, remaining glued until the moment he was shown being pushed out of the classroom on the surveillance footage.
Before the end of the self-study class, the Class Teacher and the monitor returned to the classroom, one in front of the other.
The Class Teacher, who upon leaving had been full of vigour and righteousness, returned looking like a beaten eggplant.
He thought back confusedly to the monitor's words not long ago when they were alone in the small office.