Bulma

Biodata

Feature	Details
Name	Bulma (布玛)
Alias(es)	“Genius Girl” 42
Gender	Female
Occupation/Role	Inventor and engineer; creator and operator of advanced technology including the Dragon Radar, Gravity Chambers, spacecraft, and time-machine equipment 20 43 77 271 650
Status	Alive 718
First Appearance	Chapter 20

Background / History

Bulma is a gifted inventor who created the Dragon Radar while still young and independently set out to search for the Dragon Balls, displaying both scientific curiosity and unusual courage. She first encounters Kashius at the World Martial Arts Tournament, where she is already acquainted with Son Goku and Yamcha. 20

Her technical expertise becomes central to Kashius and Goku’s training. She programs her home as the Dragon Radar’s starting point, prepares a Gravity Chamber manual for Kashius overnight, and repeatedly improves the chamber despite its danger. 43 45 77

During the King Piccolo crisis, Bulma supplies the Dragon Radar and holds the Four-Star Dragon Ball she recovered in West City. She had intended to use it to establish a connection with Kashius, though she initially framed this as wanting another powerful ally. 130 144

After Kashius vanishes for seven years, Bulma researches spatial rifts using the limited information available to her and later reunites with him on Namek. The separation matures her from a more impulsive young woman into someone described as gentle and virtuous. 170 220 278

Bulma later marries Vegeta and becomes the mother of Trunks and Bulla. She remains deeply involved in crises affecting Earth, frequently confronting Goku and Vegeta when their decisions place the planet or their family at risk. 325 655 666

Appearance

Bulma is described as a beautiful young woman with blue hair, a delicate face, willow-leaf brows, and large expressive eyes. Her hair is later depicted as long and draped over her shoulders. 20 170

• Blue hair; often long in later appearances. 20 170
• Delicate features and large, expressive eyes. 20
• In her later life with Vegeta, she is seen caring for Trunks and Bulla as a mother. 340 655

Personality

Bulma is proud of her intelligence and refuses to be easily fooled. When Kashius claims he could not locate her house, she immediately points out that she programmed her address into the Dragon Radar herself. 43

She is forceful, impatient, and quick to anger when people behave carelessly or disrespectfully. Her usual responses range from scolding and threats to physically striking Kashius, Master Roshi, Goku, and others. 20 42 103 666

Beneath that temper, Bulma is devoted and protective. She stays awake to prepare Kashius’s Gravity Chamber instructions, worries through his long absences, offers the displaced Namekians a home, and supports the people around her with food, shelter, equipment, and practical help. 45 170 271 425

Her later actions toward Buds show exceptional patience and maternal compassion. Even after he destroys cities, an alternate-timeline Bulma nurses him, investigates who manipulated him, and insists that he is her son rather than a weapon. 634 696 708

Abilities & Skills

Inventive Genius

Bulma is an exceptionally capable engineer whose inventions support the group’s travel, training, and Dragon Ball searches.

• Created the Dragon Radar at a young age and programmed her home as its starting point. 20 43
• Modified the Dragon Radar and improved a scouter’s detection threshold, though Son Goku’s power still exceeded its limits and burned the device out. 197 213
• Built a spacecraft with Dr. Brief for Goku, Gohan, and the others to travel to Namek. 271
• Identified and recovered the Four-Star Dragon Ball within West City. 144

Gravity Chamber Engineering

Bulma develops and upgrades high-gravity training facilities for Kashius and Goku.

• Provides Kashius with a Gravity Chamber capable of reaching one hundred times normal gravity. 44
• Writes Kashius a detailed operating manual overnight. 45
• Agrees to upgrade Kashius’s chamber to two hundred times gravity and later lets Goku use it. 77 170
• Recognizes the risks of extreme gravity, noting that ordinary people could not move freely under one hundred times gravity. 44

Temporal Technology

Bulma works extensively with time-machine technology across timelines.

• Produces fuel for a Time Machine so Buds can see his father. 650
• Works in an underground laboratory to improve fuel-production efficiency and debug the machine. 664
• Struggles to repair a damaged Time Machine, despite her expertise. 684 675
• Agrees to build another Time Machine only if Buds is not allowed to remain in the past with Kashius. 714

Unexpected Physical Force

Though not a combatant, Bulma is repeatedly portrayed as capable of overpowering stronger characters in comedic confrontations.

• Knocks down Kashius despite his stated power level of roughly 300. 42
• Uses a giant hammer to send Master Roshi flying or strike him before he can escape. 20 103
• Her temper intimidates Yamcha, who considers her dangerously strong. 42

Equipment / Items

• Dragon Radar — her signature invention for locating Dragon Balls. 20 43
• Giant hammer — used against Master Roshi. 20 103
• Gravity Chambers — engineered and upgraded for Kashius and Goku’s training. 45 77
• Time Machine equipment — including fuel-production systems and repair tools. 650 664

Relationships

• Kashius — friend, technical collaborator, and early romantic interest. Bulma prepares his Gravity Chamber manual, worries during his disappearance, and initially hopes to grow closer to him through the Four-Star Dragon Ball. 45 144 170 278
• Son Goku — longtime friend whom Bulma initially regards as a younger brother. She supports him with food and technology and has enduring faith in his ability to protect others. 94 170 224 429
• Yamcha — her boyfriend during the early story. Their relationship becomes strained by Bulma’s growing interest in Kashius and Yamcha’s insecurity. 42 45 94 130
• Vegeta — her husband and the father of Trunks and Bulla. Bulma confronts his threats without outward fear, while Vegeta later prioritizes her safety and childbirth over battle. 271 325 655
• Trunks — her son. Bulma is protective of him in both the present and future timelines, and supports his efforts to rebuild the future. 655 662 664
• Bulla — her daughter with Vegeta. Bulma organizes Bulla’s birthday celebration and is shown caring for her during later events. 543 675
• Buds — an alternate-timeline child created using Bulma’s and Kashius’s cells as a countermeasure against the Androids. Bulma considers him her son and repeatedly protects him despite concealing parts of his origin. 634 696 708
• Grand Elder Guru and the Namekians — Bulma houses displaced Namekians after Guru’s death and maintains a relationship of mutual gratitude with them. Guru also asks her to marry Kashius. 225 271 423

Story Role / Major Arcs

Dragon Radar and Gravity Chamber Development

Bulma’s inventions make Dragon Ball collection and Saiyan training practical. Her home becomes a recurring base for Kashius, Goku, Yamcha, and later Vegeta. 43 45 77

King Piccolo and Namek

Bulma provides the Dragon Radar during the effort to stop King Piccolo, then joins the Namek expedition. After Kashius’s years-long disappearance, she researches spatial rifts and reunites with him on Namek. 130 170 220 278

Vegeta and Family Life

Bulma faces Vegeta’s demands for a spaceship, later becomes pregnant with Trunks, and ultimately builds a family with Vegeta, Trunks, and Bulla. She remains the group’s most outspoken civilian voice during threats to Earth. 271 325 655 666

Future Timeline and Buds

In an alternate future devastated by the Androids, Bulma cares for Buds after his destruction of cities, develops Time Machine fuel, and attempts to keep him safe. Her eventual revelation that he was created using her and Kashius’s cells becomes a major emotional conflict for both Buds and Kashius. 634 650 664 696

Notable Quotes

“I never treated Buds as a weapon. He is my son—my son without question.” 696

“If you don't agree, then forget about asking me to build you a Time Machine.” 714