Zhou Zilong

Biodata

Feature	Details
Name	Zhou Zilong (周梓龙)
Alias(es)	Brot
Species/Race	Pure Earthling originally; later possesses a Legendary Super Saiyan bloodline and identifies as a Saiyan 2 16 22
Gender	Male
Affiliation	Turtle Hermit School; Capsule Corporation
Occupation/Role	Martial artist, Bulma's bodyguard, inventor, business owner, protector of Earth
Status	Alive
First Appearance	Chapter 1

Power Progression

Stage / Realm / Level	Chapter	Notes
Strong-tier potential; Combat Power 5	2	The Dragon Ball Fantasy System records him as a Pure Earthling with Advanced Sanda Skills, 105 vitality, and 500 potential.
Epic potential; Combat Power 10	3	His first Marrow Cleansing raises his potential to ten trillion and unlocks God-tier Super Brainpower, Steel Body, beginner Time Control, and God-tier Transformation Technique.
Training bottleneck; Combat Power 50	5	After a year of self-training and gravity-chamber practice, he can no longer improve without formal martial-arts guidance.
Turtle Hermit School training; Combat Power over 100,000	10–11	Master Roshi teaches him aura control, composure, and martial philosophy; Zilong normally suppresses his detectable power while confronting the Predator Mercenary Group.
Legendary Super Saiyan bloodline	15–16	Following his final Marrow Cleansing, Xiao Ling provides him with a Saiyan identity and the Legendary Super Saiyan bloodline.
Kaioken mastery	21	After training under North Kai, he can readily use up to 10× Kaioken, though each increase places greater strain on his body.
Concealed base strength; Combat Power 3,000,000	45	While planning against the Scale-Head Aliens, he assesses himself as far below Frieza despite being a formidable universal combatant.
17× Kaioken	48	He pushes Kaioken to seventeen times during his battle with Kazer, shattering Kazer's energy shield; the technique soon overloads his body and leaves him at 2,300,000 combat power.
Great Ape Transformation	49	He creates an Artificial Moon and becomes a 40-meter Great Ape, multiplying his power twentyfold with less burden than Kaioken.

Background / History

After dying in his original world, Zhou Zilong transmigrated to the Dragon Ball world. Upon learning how dangerous the world was, he intervened against kidnappers targeting Bulma and saved her, choosing to alter his own fate rather than remain a bystander 1 2.

His contact with Bulma activates the Dragon Ball Fantasy System, whose AI, Xiao Ling, becomes his constant guide. Dr. Brief offers him work as Bulma's personal bodyguard, allowing Zilong to stay at the Brief residence and study Capsule Corporation technology 2 3. His first Marrow Cleansing fundamentally enhances his body and potential, giving him several rare abilities 3.

Using God-tier Super Brainpower and Dr. Brief's instruction, Zilong quickly learns scientific theory and builds a gravity training room capable of simulating up to one hundred times Earth's gravity. When his self-training reaches a bottleneck, he seeks out Master Roshi and becomes the Turtle Hermit School's third disciple after creating the lifelike robot Mei Hui to satisfy Roshi's admission condition 4 6.

Master Roshi's training develops Zilong's endurance, calmness, aura control, and understanding of martial arts as a means of healthy and meaningful living. After eight months, Roshi sends him out to gain experience, having taught him all he can 7 15.

After receiving his Saiyan identity as Brot and the Legendary Super Saiyan bloodline, Zilong trains under Korin, the Guardian of Earth, and North Kai. He learns to use Senzu Beans, trains in the Hyperbolic Time Chamber, develops space-based techniques, and masters Kaioken before returning to Earth 16 21.

Appearance

Zhou Zilong is a tall, handsome young man with a sturdy physique and a composed presence. After gaining his Saiyan bloodline, he possesses a tail and adopts a hairstyle compared to Gogeta's 2 13 22 41.

• Often wears practical training clothes, including a black bodysuit during combat 13.
• Designed a personal black-and-red battle suit with gold accents to establish his own combat identity 41.
• His long boots are black at the front, red at the back, with gold detailing on the toes and upper rim 41.
• Can transform into a roughly 40-meter Great Ape with brown-black fur and massively expanded musculature 49.

Personality

Zilong is driven by the desire to become strong enough to protect Bulma, his companions, and Earth. He repeatedly pursues harsher training, from gravity exercise and Turtle Hermit School labor to the Ultra Divine Water, Hyperbolic Time Chamber, and King Kai's Planet 4 5 16 18.

Master Roshi's teachings shape his belief that strength must be guided by a healthy mind and used against those who prey on ordinary people. Zilong acts against kidnappers, mercenaries, traffickers, and hostile alien forces even when doing so risks attracting stronger enemies 7 10 11 45.

In battle, he is calm, strategic, and willing to use deception or overwhelming force when necessary. He can be compassionate toward allies and trainees, but shows no mercy to enemies who threaten Bulma or continue committing atrocities 30 44 50.

Abilities & Skills

Dragon Ball Fantasy System

Xiao Ling's system supplies Zilong with status information, rewards, training opportunities, and access to a System Mall.

• Records combat power, potential, abilities, and personal data of scanned individuals 2 14 46.
• Provides Marrow Cleansings that improve his potential and unlock abilities 2 3 15.
• Rewards him with the Space Cultivation Law after he meets Master Roshi 6.
• Can assist with large-scale information blocking and protective barriers, allowing Zilong to act without alerting the Frieza Force 45.

Ki Manipulation and Martial Arts

Zilong possesses Advanced Sanda Skills and later receives systematic martial-arts instruction from Master Roshi and North Kai 2 6 11 21.

• Kamehameha — Learned from Master Roshi; used to neutralize the Shadow Bazooka's beam and eradicate Scale-Head forces 11 47.
• Kaioken — Multiplies his combat power through a crimson aura; he reaches 10× in training and 17× against Kazer 21 48.
  • Limit: The physical burden rises sharply with each multiplier; 17× causes his power to collapse mid-battle 21 48.
• Flight — Uses ki to fly, including during his journey along Snake Way 18.
• Aura control — Can suppress his displayed combat power and maintain composure in battle after Roshi's training 10 11.
• Shockwave attacks — Defeated Yamcha with a held-back punch that generated a powerful desert-wide shockwave 30.
• Solar Flare — Uses it to blind Kazer and create an opening for transformation 49.
• Prince Tactics — Fires powerful Qi Gong waves to destroy obstacles while pursuing Kazer through his spaceship 48.

Saiyan Physiology and Transformations

Zilong receives an arranged Saiyan identity as Brot, an exiled warrior allegedly born with a combat power of 1,000. His Saiyan traits include a tail and access to Great Ape transformation 16 22.

• Artificial Moon — Creates a moon-like energy sphere to trigger his Great Ape form 49.
• Great Ape Transformation — Increases his combat power twentyfold and gives him a massive 40-meter ape body 49.
• Spatial Bind — In Great Ape form, uses spatial power to restrain Kazer and prevent his escape 49.
• Form Fusion trial — After defeating Kazer, he attempts to merge his base state with his Great Ape state through the Fusion Law; the initial attempts fail as the two powers repel each other 50.

Spatial and Temporal Abilities

Zilong's Space Cultivation Law enables him to comprehend and manipulate spatial power 6.

• Space teleportation — Creates a blue-ringed portal to return from King Kai's Planet to Earth 21.
• Spatial manipulation — Applies spatial power in combat, including confinement techniques against Kazer 49.
• Time Control (Beginner) — Unlocked through Marrow Cleansing.
  • Limit: Xiao Ling warns him to use it cautiously until he is sufficiently capable, as others in the world may be wary of the ability 3.

God-tier Transformation Technique

Zilong can alter his appearance and imitate another person's aura 3.

• Can conceal his identity.
• Can deceive or intimidate opponents.
• Functions as a complete physical and aura-based disguise 3.

Physical Enhancements

His Marrow Cleansing grants Steel Body and greatly improves his vitality, physical development, and potential 3.

• Endures gravity training, prolonged physical labor, Ultra Divine Water toxicity, and high-level Kaioken strain 4 9 16 48.
• Uses a Senzu Bean through spatial ability to recover during his battle with Kazer 49.

Scientific and Engineering Expertise

God-tier Super Brainpower allows Zilong to rapidly master scientific texts and apply the knowledge in practice 3 4.

• Designed and built a gravity training room capable of one to one hundred times Earth's gravity 4.
• Created thirty robot bodyguards for Bulma and Dr. Brief, each stated to have a combat power of 30,000 5.
• Built Mei Hui, an advanced humanoid robot with sensors, learning capability, and lifelike behavior 6.
• Converts fresh fish into capsule items for transport and trade 15 17.
• Establishes multiple business sectors after returning from King Kai's Planet 21.

Equipment / Weapons / Items

• Personal gravity training room — Self-built chamber with adjustable gravity from 1× to 100× Earth gravity 4.
• Jet plane — Modified for his journey to Master Roshi's island and later used to reach Korin Sacred Land 5 6 16.
• Energy detector and portable communicator — Made by Bulma for his early travels 5.
• Robot bodyguards — Thirty robots created to protect Bulma and Dr. Brief 5.
• Mei Hui — Lifelike humanoid robot created to meet Master Roshi's condition for accepting a disciple 6.
• Capsule fish supplies — Live fish converted into portable capsule items; used to trade for Senzu Beans 15 17.
• Senzu Beans — Obtained from Korin and later used to recover in battle 17 49.
• Storage pendant — System Mall device given to Ox-King to protect valuables from a future fire 33.
• Black-and-red battle suit — His custom combat uniform, accented with gold and paired with red-and-black boots 41.

Relationships

• Bulma — His first major ally in the Dragon Ball world. He saves her from kidnappers, serves as her bodyguard, later reveals his Saiyan identity to her, and is identified as her fiancé 1 3 22 44.
• Xiao Ling — The AI of the Dragon Ball Fantasy System. She provides status scans, training rewards, strategic advice, and battlefield support 2 3 45 49 50.
• Dr. Brief — Employer, technological mentor, and Bulma's father. He gives Zilong access to scientific books and laboratory work after Zilong saves Bulma 2 4.
• Master Roshi / Master Mutian — His martial-arts master. Roshi accepts him as his third disciple and teaches him the Turtle Hermit School's martial philosophy and techniques 6 15.
• Young Goku — A younger companion and student. Zilong teaches Goku to draw ki from his body and recommends that he later train under Master Roshi 26 30.
• Korin — Mentor at Korin Tower who warns Zilong about Ultra Divine Water, gives him Senzu Beans, and teaches him their cultivation method 16 17.
• Guardian of Earth — Entrusts Zilong with helping protect Earth and grants him access to the Hyperbolic Time Chamber 17 18.
• North Kai — Trains Zilong on King Kai's Planet, where he develops Kaioken and improves his spatial movement 18 21.
• Ox-King — His senior brother under Master Roshi. Zilong earns his respect and gives him a storage pendant to preserve his wealth from a future fire 32 33.
• Yuena — A subordinate who calls him “Boss.” Zilong reassures her after she fails to protect Bulma and promises to strengthen his guardians further 43 44.
• Mei Hui — The humanoid robot Zilong created; she was instrumental in securing his discipleship under Master Roshi 6.

Story Role / Major Arcs

• Arrival and System Binding — Saves Bulma, gains the Dragon Ball Fantasy System, and begins building a life at Capsule Corporation 1 4.
• Turtle Hermit School Training — Seeks Master Roshi after reaching a training bottleneck; undergoes months of physical, mental, and moral training 5 15.
• Earth and Other World Training — Gains a Saiyan bloodline, survives Ultra Divine Water, trains in the Hyperbolic Time Chamber, and studies under North Kai 15 21.
• Dragon Ball Journey — Reunites with Bulma and joins her and Young Goku's Dragon Ball search; helps defeat Oolong, overwhelms Yamcha, and begins teaching Goku ki control 22 30.
• Fire Mountain Incident — Establishes himself as Ox-King's junior brother, helps resolve the Fire Mountain crisis, and secures the group's sixth Dragon Ball 32.
• West City Kidnapping Crisis — Interrupts his seclusion to protect Bulma and Yuena, then kills Sada after Sada threatens Bulma 41 44.
• Scale-Head Alien Conflict — Moves to rescue Iris and eliminate the Frieza Force-affiliated Scale-Head Aliens without drawing Frieza's attention 45.
• Battle with Kazer — Fights Kazer through escalating Kaioken multipliers, survives near defeat through a Senzu Bean and Great Ape transformation, kills Kazer, and annihilates the remaining Scale-Head race 46 50.

Notable Quotes

“The gap between our strength is too great. It's over!” 30

“I may not be very strong right now, but to beat a Lizardman like you, I am more than enough!” 44

“You aren't qualified to negotiate with me right now!” 49

Trivia

• Zilong's arranged Saiyan identity, Brot, states that he was born in Age 727 with a combat power of 1,000 before being exiled due to King Vegeta's fear of his potential 16.
• He creates Mei Hui specifically because Master Roshi requires him to find a beautiful girl before accepting him as a disciple 6.
• His space teleportation portal is deliberately styled after the portal-drawing gesture used by Doctor Strange 21.