A magazine photographer Kohei Morioka, is on an assignment in Germany. When Kohei enters a dark German castle, he encounters a young vampire girl named Hazuki. Hazuki tried to turn Kohei into her own servant. But Kohei didn't succumb to Hazuki's will. He does however, set her free from the barrier that's keeping her within the castle's territory. On his way back to Japan, Kohei was surprised to see the same young vampire girl living in the same country as he is.