Kasumi Kageyama

Kasumi is the class president of Yuuki and Zero's class. He seems to be a very strict and orderly person who would do anything to get what he needs out of life. He can be rather dramatic, shown when he agitatedly called Yuuki out on her poor grades. Kasumi seems to have a big crush on Ruka and gets flustered around her. (Source: Vampire Knight Wikia)