A King's Slave.
Tsukiko Yukimura is an S class vampire that had a 430 million yen bounty put on her head by Hunters...however in the past she was cursed and every day she turns into a nice, down to earth 3rd year highschool student, but by night she turns into her old self and uses her perfect body to drain men of their blood.
However one unfateful night she seduces the wrong man and finds herself being held captive by another powerful S class vampire who she must now call master in order to keep her two brothers alive along with herself and everyone that she gets close too....
Can Tsukiko escape her "Masters" grasp or serve him and his dark desires forever??