The last of the four remaining dukes, known as the longest living duke and is a very knowledgeable person.
He is Sheryl's childhood friend, and he made a contract with Dodo. He speaks in an older form of Japanese, making his speech more complex compared to all the other characters. He's voiced by Yuuya Uchida.
Rufus first appears as a round man with a big mustache wearing a big teacup shaped hat. That was the illusion he made so that the real 'him' can stay with Sheryl as her servant. The real Rufus has long crimson hair, an ahoge, and tired looking eyes. He usually wears a pair of heels and brings a fan as his weapon. He's looks like 37, even though his real age is 67. His height is 176 cm.
He likes information, and holds information on almost all topics and even knows people's personalities and is thus able to predict their reactions. He is cold and heartless, easily manipulating others. It seems that he doesn't really like Oz. He acts as Sheryl's valet, and is seen to have a crush on her throughout the series, though it is noted that she does not feel the same way. Rufus is shown is loyal to his family, shown when he attacks Sheryl when the Baskerville come.
He's able to create illusion, like he did when he invite Break and others.
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