Beautiful vampires Sakurako and Komachi fall in love with a human named Hayato. Sakurako is 170-years-old and Komachi is 165-years-old but they both look only 20-years-old. Komachi saves Sakurako from a vampire count who wants to marry her. They then break a taboo of the vampire world and flee to the human world. There, Sakurako meets Hayato and falls in love. The problem is in when vampires fall in love they crave their partner's blood. Sakurako then realizes that when she plays the guitar, her lust for blood becomes weaker. Because of Hayato, Sakurako takes up the guitar. Meanwhile, Komachi becomes worried about Sakurako. Hayato then begins to take interest in Komachi.