The Underworld Academy is a place where knights gather, and the person who leads them is called "King".
Hui Yumeng, an ordinary student, came to Ming Academy in order to find the person who has taken root in his heart for a long time.
By a coincidence, Hui Yumeng discovered that the "king" she longed for was actually a vampire. Not only him, but also the entire student union were vampires. Strange girls appear one after another.
In this way, the chase between the knights and the girls begins. Who will win and who will lose? See Vampire Knight...