'Knock! Knock! Knock!
"Come in"
When they entered the office, the group saw that Schoolmaster Yin was still busy reading the school reports.
And it doesn't look like he will going to finish it anytime soon. Because apparently, there was still a lot of these same reports that he had to check.
The group can notice as much as that since it was an obvious case base from the high pile of papers resting at the side of Schoolmaster Yin's table.
Well, at least it works to their advantage that Schoolmaster Yin was still up at this time of the night.
"What brought you here?"
Schoolmaster Yin asked the group as soon as they sat down.
It won't come as a surprise if Schoolmaster Yin will going to admit that he was baffled in meeting them. After all, he did not expect to receive a guest in this ungodly hour.