Black Island is one of 34 islands surrounding Whole Cake Island as part of the Big Mom Pirates' main territory known as Totto Land. It is run by Charlotte Dosmarche, the Minister of Tea (お茶大臣 Ocha Daijin?).
Less than 62 years ago, Black Island became part of the Big Mom Pirates territory also known as "Totto Land", and its appearance was changed to its current look using Charlotte Linlin and Streusen's Devil Fruits (the Soru Soru no Mi and Kuku Kuku no Mi respectively).
- The name of the island and the title of the one running it are clear references to black tea, a type of tea.
- One Piece Magazine Vol.5 (p. 134), Dosmarche's position and island is named.