Mob is very busy preparing for the cultural fair that's coming up in two weeks. Meanwhile, Serizawa is trying to start over, and is thinking about going to night school.
You should also not mention them so casually.
لا ينبغي أن تذكر اسمهم بشكل عفويّ هكذا
Ne vous avisez pas
de les prononcer à la légère,
E farebbe meglio a non nominarli così alla leggera.
Você também não devia 
falar com tanta casualidade.