Bulma (ブルマ, Buruma?) is a fictional character who first appears in the Dragon Ball manga created by Akira Toriyama, followed by three anime adaptations. She was originally portrayed as a secondary main character, next to the main protagonist Son Goku. But her role was quickly downplayed as the series continued, even though she did still remain an important supporting character for most of the series. In the series, Bulma is the daughter of Dr. Briefs; the founder of Capsule Corp, a fictional corporation that creates special capsules that are often used in the series to store objects of various sizes. Being the daughter of a brilliant scientist, Bulma is also a scientist and inventor. She is most credited for inventing the Dragon Radar, a device that is specifically designed to detect the signal emitted by the Dragon Balls in the series.
Bulma's role as an inventor becomes important at several points in the series. Several of her creations were major to various plotlines, including a microband that could make her shrink, the time machine that brought her son Trunks to the past during Dragon Ball Z and the generator that allowed her husband Vegeta to achieve Super Saiyan 4 in Dragon Ball GT.