The teacher for this class was a balding, chubby middle-aged man, a common sight in these types of settings.

But in just one session, he’d become a student favorite—not because his teaching was particularly fun or humorous; in fact, it was painfully dull. The main reason was that he simply didn’t care what the students did during class.

Even when Yan Xinya suddenly let out a loud “Oww!” that interrupted his lecture, he merely glanced her way before continuing without a word.

Attendance was equally laid-back; with his head down, he marked each name as if completing a checklist, not …