Kaidou was currently sitting in class as usual, Sitting beside him is Saiki whos always quiet and stoic, and behind Kaidou is Nendou a moron whos incredibly dumb, Nendou is currently mumbling random things under his breath that Saiki isn't bothering to listen to, and Kaidou isn't listening to class, instead Kaidou is doodling in his 'secret hero journal'

Teruhashi and Chiyo were talking in the back of the class at their desks quietly

The teacher is Teaching class