A century ago, the good king Phelios and the Vampire King Duzell had a life-threatening duel. Phelios defeated Duzell, but he was killed in the process. Now Duzell has been reincarnated as a kyawl, a catlike creature, to take revenge on Phelios's reincarnation. He becomes adopted by Princess Ishtar, one of Phelios's decendants. Duzell, with the help of Ishtar, now begins his quest for revenge!