@Allen Osborn haven't read the books in a while, but they need to go through the rest of the class's stories. At this point everyone else is still an infant, like vamp girl, so they haven't done much. If you watched the anime, you will know most of the story it's gonna go thru, since they did things based on 2 different time-lines instead of mostly chronologically (like the book/manga)
Buy High, Sell Drunk
Vatnik Destroyer, Catgirl Enjoyer
Be Sure to Save Women and Children First, They Make the Best Shields!