As a descendant of the Yin Yang family, I, Xia Moxi, a girl with black and red pupils. With a mission, I opened the entrance door and came to the Royal Lindis Academy in the underworld. In this place, it is controlled by the four vampire families. In this world, I have offended the four royal highnesses of the vampires: Xier, your blood is so sweet... Baby, your blood can only be enjoyed by this highness... Mo, I'm afraid I can't help but suck up your blood... ...Woman, from today onwards, you can only be the exclusive food of this highness... I am entangled among the four top-quality highnesses, but, huh... all I want is to become the queen of the underworld... Academy] Husband and wife essay...