Bulma is a protagonist in the Dragon Ball metaseries. She is a scientist and the daughter of Capsule Corporation's founder. She is Goku's first friend and lover. She used to be the girlfriend of Yamcha, but dumped him for Goku. With him she had two sons named Trunks and Goku Jr. In a parallel universe, Goku and her only have a daughter named Bra. She lives in West City all her life, and her address is listed as WST 3338926 K. Her Citizen Number is SSC 41453.
Throughout the entire series, Bulma has changed her appearance more than any character going through a total of 17 different hairstyles. In the original series, her hair is blue or turquoise. Many of the clothes Bulma is seen wearing often bear her name or the Capsule Corporation logo on it.
Bulma has a tomboyish personality and a personality similiar to that of Goku's. She is known for her extreme intellect. She often displays friendliness and helpfulness towards others, especially Goku. As an adult, she develops a calm demeanor which enables her to ride the Nimbus. Also, she focuses on helping out by creating and fixing inventions that help the Z Fighters.