In the light novel's ending, there are significant revelations about the true nature of the school system and the characters' growth. Ayanokoji Kiyotaka, the main character, has evolved in his understanding of the world around him and his place in it.
I have no definite knowledge on this. But often, such information can be found on specialized light novel databases or through discussions among avid readers of the series.
In the ending, there is a shift in the relationships among the students. Ayanokoji's actions lead to some students re - evaluating their positions. Also, the mystery behind the school's system is further explored, with some aspects being disclosed which shock the students. For instance, the true nature of the points system and how it affects their future is revealed more clearly, and this causes a stir among the students as they realize how much they've been manipulated.