In a pot, boil water over medium heat. Once boiling, add tapioca pearl. Simmer for 10 minutes, stirring occasionally so the tapioca pearl won't stick to the pot. Turn off the heat, then cover and rest it for another 10 minutes.
After done resting the tapioca pearl, strain and transfer it to a mixing bowl. Add sweetened condense milk, and milk then mix it well.
Dice the mango, and strain the nata de coco then combine it with tapioca pearl mixture. Stir to combine and refrigerate it before serving. Enjoy!