Vampire Game (吸血遊戯, Kyūketsu Yūgi) is a manga by the Japanese author and artist, Judal.
It originally ran in the monthly manga magazine Wings, with its last chapter serialized in the November 2004 issue.
One hundred years ago, Vampire King Duzell led a war against the humans and kingdom of Pheliosta, simply because he was bored.
As both lay dying, Duzell swore that they would be reborn in a century's time, and he would find Phelios' reincarnation and kill him.
Unfortunately, the kyawl killed an innocent man in the process, leaving a little boy, Roy, fatherless.
Princess Ishtar of Pheliosta, great-granddaughter of Phelios, becomes caught up in the plot when the villagers attacked by the kyawl bring a report of the event.
In her dying moments, the kyawl gives birth to a kitten that houses Duzell's soul.
With Roy not wanting revenge on the kitten, the cycle of hate is ended, and Ishtar adopts Duzell as a pet, even after he bites her (and incidentally discovers she's not Phelios' reincarnation).
Duzell recovers some of his powers and uses the taste of Ishtar's blood to become a male doppelganger of her, taking her place while the Princess is playing hooky.
Duzell escapes, only to run into Ishtar, who accepts the situation with remarkable aplomb and keeps up the charade as well, though it's doubtful how many people they fool.
Despite not earning or deserving her trust, Duzell confesses his true identity as the Vampire King, only for Ishtar to offer her help in his quest.
When he was still alive, before his battle with Phelios, Duzell struck fear into every heart, human and vampire alike.
He has used his mother's face and name as an alias to hide his true identity, while bargaining with a mortal.
Jened – Ishtar's uncle and king of Ci Xeneth.He conducts secret experiments to create ruelles from the souls of monsters.
His holy magic abilities and his years of studying poisons have made him one of the most powerful members of Phelios' bloodline.
Carbuncle, Diva, Makai sangokushi CHIMAERA, Nerva shinjuuki, Nighteye (Night Eye), and Yoru no Hitomi (published by Bonita Comics)