Yokai Academy a school for monsters designed to help monsters blend into human society. Tsukune and the Newspaper Club are in year two.
To bring everyone to speed the girls got the hint that Moka is destined to be Tsukune's girlfriend. And no she is not sharing outside of Inner Moka. Kokoa isn't thrilled but it but nothing makes her little sister happy anyways.
Yukari in a lost cause attempt still wants to love both of them. Mizore never wants to be alone again and still wants a role in Tsukune's life. Ruby is busy with the Headmaster's orders and is trying to fill her role wherever it's called for. As for Kurumu she's been not her normal self. She seems depressed compared to her normal giddy self.
What's wrong with our Succubus? Is this about her powers? Stuff that isn't well known due to the rare documentation? Guess we'll see.
I own nothing of Rosario Vampire. This is just a fan fiction of a possible outcome in my own thoughts.