Tsubone

Tsubone is a female butler of the Zoldyck Family. She and her granddaughter Amane were officially informed when Silva Zoldyck ordered them to accompany Killua and Alluka.

Personality
Tsubone is an experienced butler of the Zoldyck family. She is extremely loyal to Silva, and will not hesitate to execute his orders. Among all servants, Tsubone is the only one to dares to call Killua "Killua-chan" and Alluka "Alluka-chama".

Appearance
Like all Zoldyck butlers, she wears a male black formal suit. Tsubone is a relatively tall and bulky old woman. Her hair is tied up into two pigtails, and wears a monocle on her right eye.

Plot
Silva Zoldyck ordered Tsubone and Amane to accompany Killua. If he ever breaks the rules, Tsubone will immediately take Killua back home and if he resists, he will be knocked down without hesitation. Alluka then suddenly asks for her pinky fingernail. While everyone is in the state of shock, Tsubone gladly gives Alluka what he demands and tells Killua that she will conceal herself. In this situation, Alluka will not be able to request wishes from other people since Alluka's three wishes on Tsubone is not yet done.

Tsubone appears again when she is running after Killua and Alluka who escaped from the Zoldyck butlers. Tsubone thinks to herself that Killua has become mature enough and he will someday become a splendid assassin. She remarks on her rude behavior, admitting to not being able to love Illumi and Milluki like a mother as she does Killua.