Nugui

The Kakin Butler is a butler to King Nasubi.

Appearance
The Butler wears a black suit, a white dress shirt, with a laced tie.

Dark Continent Expedition arc
The Butler informs Tserriednich Hui Guo Rou in order to participate in the Succession War, he must get aboard the Black Whale. Tserriednich inquires how many will participate in the event, but the Butler cannot answer anything, until just before the ceremony begins. He further explains that the Succession war will commence when the horn goes off and after it does, he's free to use whatever in his disposal to survive and the remaining sole survivor will become King. The Butler then opens up a box with the Sacred Urn inside and asks Tserriednich to follow the Urn's ritual. Tserriednich does and asks the Butler what was the point of it all and the Butler explains that it's a ritual that has been passed down in the Royal family for many generations that blesses the descendants with special powers. A flashback reveals the Butler listening to King Nasubi explain the Pot's history in further detail.

During the Dinner banquet, the Butler informs Queen Oito Hui Guo Rou and her daughter Prince Woble Hui Guo Rou that it's there turn to leave. He then informs Prince Kacho Hui Guo Rou it's her time to leave as well, but she insists that her twin sister Prince Fugetsu Hui Guo Rou comes along.