I prefer the manga- since the anime tweaked it a bit to my dismay ):
Dance in the Vampire Bund (ダンスインザヴァンパイアバンド, Dansu in za Vanpaia Bando?) is a supernatural romance manga written and illustrated by Nozomu Tamaki (環望, Tamaki Nozomu?).
//PLOT
The story revolves around Mina Tepes, princess-ruler of all vampires, and her "protector," Akira. Like other vampires, Mina has been in hiding with her people for many years. Seeking to end centuries of isolation, Mina gains permission to create a special district for vampires, "The Bund", off the coast of Japan by paying off the national debt of the Japanese government. Mina then reveals to the world the existence of vampires and her desire for both races to live together. Tensions, however, run high as fearful humans and extremist vampire fractions begin to interfere with Mina's wish for peace with the human world.
http://www.onemanga.com/Dance_in_the_Vampire_Bund/