Count Claude is the governor of Demonshire.
Claude achieved the seemingly impossible unity within demon and vampire societies. Demons and vampires suddenly had to live under the same roof after the Demon World's unification war 500 years ago. They couldn't accept each other's differences and conflict started to brew. As conflict and hate was about to swallow up Demonshire, Claude emerged and intervened. He promised prosperity and harmony between the the two species, and married iris, a noble demon family's daughter. The union between these two symbolized unity within Demonshire. Claude gained wholehearted support from Demonshire's citizens and became its leader. Some claimed the union between Claude and Iris was an emotionless arranged marriage, but Claude's love towards Iris was true. Claude didn't show it, but he deeply loved the companionship, and the little world they made together. Because of that, Claude stepped into eternity. Even a shred of hope was enough. If he could protect his loving daughter Priscilla, the treasure his wife left behind.
In Priscilla's memories, Claude is remembered as a cold and quiet father, but he treasured her. All the letters Priscilla wrote to Claude when she was young are stored under high security and within his reach. The letters kept his resolve while Claude went through the painful loops.
Claude's a powerful being who lived for a long period, to the point he can call Lilith a milk-drinker. He's a pure-blooded vampire born with great mana. The experience he gathered from his long life makes his power at the summit for a single species. Turning back time using the artificial sun's explosion was only possible because the caster was Claude.
Just like the other vampires, Claude also drinks blood. Many worry or expect Claude to bite the victim's neck while drinking blood since he's a pure-blooded vampire, but he actually prefers drinking refined blood like blood packs. It's because he believes a willingly tribute is more valuable than blood taken forcefully.
Claude's the author of the cook book, '100 ways to enjoy blood'. This is the result from him researching a way to feed blood to Priscilla, who felt urges to drink blood but didn't like consuming it. The Count family's refined blood dishes are all made with the Count's recipes.The recipes are delicious, but the cooking process is severely particular. Due to this, many cooks within the Count's family quit after a short period despite being well.