The next day,
Veena, alongside all the students from 2nd year, came to the waiting room. Today, students from class 2B and 2A will be fighting those monsters.
Naturally, they need to prepare themselves to face those monsters. Until now, those students from classes 2D and 2C did not face any uncommon monsters.
All of them face common monsters that previously those 1st years also faced. This gives them more advantages and more information regarding those monsters.
Even though you have details written on the catalog, in real life battle you would not be able to use that information until you did not have experience with it.
Fortunately, when those first-year students fight those Monsters, they also give those second-year students the idea about those Monsters and their fighting capability.