Quick Answer: Bulma is a fictional character in the Dragon Ball franchise, first appearing in the original manga series created by Akira Toriyama, Goku's best friend and the eventual wife of Vegeta and mother of Trunks and Bulla. She made her appearance in the first chapter "Bulma and Son Goku", published in Weekly Shōnen Jump magazine on 19 June 1984, issue 51, meeting Goku and befriending him and traveling together to find the wish-granting Dragon Balls. Bulma is the daughter of Dr. Brief, the founder of Capsule Corporation, a company that creates special small capsules that shrink and hold objects of various sizes for easy storage. Being the daughter of a brilliant scientist, Bulma is also a scientific genius, as well as an inventor and engineer.