Perv Asshat

Perv Asshat (ドエム・ケツハット) was the Royal Chancellor of the Oriana Kingdom and Rose Oriana's ex-fiancée. In truth, however, he was a member of the Cult of Diablos who sought to become a Knight of Rounds by taking over the kingdom and using Rose's blood for the cult's experiments.

Background
Learning the Oriana's current king treason for cutting his ties with the cult and build a force to rebel against the cult by forged an alliance with the Midgar Kingdom also sending his daughter to attended their academy in the secret hope to protect her from harm, they decide to brainwashed him to become their puppet king by ordering Doem to drug the king considering his action with the help from the Queen Reina.

Doem persuaded the 9th Seat Knight of Rounds, Mordred and his faction to help him received a promotion to become a candidate for occupying the Knight Rounds 12th seat, if his mission from the cult has been successful. He agreed on helping him, in exchange for Doem backing support in the Cult’s upcoming internal power struggle.

Before the king become Cult's puppet, he did one final act; he took possession of the "Ring of Succession", which was actually the key to the "Black Rose", then he recorded his last will and testament in the ring along with all evidence of Doem and cult's crimes. Also, he altered the ring to transfer control over his daughter and by marrying her is the only way to gain dominion over the Ring. After that, the king hid the ring from the cult.

While Mordred searching the ring's hiding place, Doem will be visiting the Royal Capital of Midgar with the objective to retrieve Rose Oriana under the pretense of their engagement after the king become his puppet.

Powers & Abilities
As an Royal Chancellor, he had enormous influence, second to the king. Only by giving effective advice, he was appointed to represent his kingdom and be the spokesman for the king. He possessed some physical strength and magical power on par with the "Second Children" of the Cult of Diablos.

Raphael Oriana
Perv brainwashed the king to become his puppet in taking over the Oriana Kingdom. He prepared to have Raphael assassinate King Klaus Midgar and then used him as a meat shield in case Rose tried to attack him during the Bushin Festival only to be outraged that the princess killed her father as losing him costed him control over the kingdom. In the end, Perv received his comeuppance when Rose activated the "Ring of Succession" that projected an image of Raphael who exposed all of Perv's crimes.

Reina Oriana
Reina was Perv's lover and part of his conspirators in taking over the Oriana Kingdom. She helped Perv in brainwashing her husband. While it seems Perv is engaged in a romantic relationship with the queen, it's revealed that Perv saw Reina as nothing more than a useful pawn and implied that he would have her either brainwashed like her husband or killed.

Cid Kagenō / Shadow
On the other hand, Perv was terrified of Shadow after seeing just how truly deadly he really was. When he lost the Ring of Succession, he dismissed the idea that it was Shadow's doing because he believed he would have just easily killed him to get it.