Aside from Stelle and March 7th, who knew that there were only four classes today and spent their time playing on their phones or eating snacks during the lesson, everyone else listened attentively to Tighnari's lecture.
You might ask: didn't Dan Heng know about this too? Please, the man is an exemplary student; of course he was paying close attention.
As soon as the fourth period ended, Tighnari bolted. He certainly didn't want to wait around for the students to realize that they only had four classes today.
Chapter 404