It is completely necessary, however, as those "elites" are actually vampires.
I am not the rabid Team Kaname fan that I was at the beginning of the series, but I don't hate him either.
This volume shows that he is a much more complicated character than I r Volume 13 of Vampire Knight is the most confusing volume to date.
However, along the way you also get to style your own character and date three different boys: Chris, Aaron, and Sean.
The dating part is just a simple add-on, not important, but it is there.
Like gift giving, you can't go on dates without talking to a character for a while.
Once you have enough successful dialogues with the character, a message letting you know that you can now go on dates with the character will appear.
As the adopted daughter of the academy's chairman, Yuuki takes her job with a serious and energetic attitude.
It also allows her to interact with her secret crush and savior, the president of the Night students' dorm, Kaname Kuran.
Once you have enough successful dialogues with the character, a message letting you know that you can now give gifts to the character will appear.