Sun Jack

Biodata

Feature	Value
Name	Sun Jack (孙杰克)
Alias(es)	Jack
Species/Race	Human
Gender	Male
Affiliation	Song 6PUS's mercenary team 33 34
Occupation/Role	Mercenary and commission operative
Status	Active 50
First Appearance	Chapter 1

Background / History

Sun Jack awakens alone inside a metal labyrinth aboard a ruined space station. His memories end shortly after the summer of his college entrance examination; his phone identifies the year as 2030, leaving him with five missing years and no explanation for why he had been cryogenically stored in a freezer. He records videos to document the maze and his worsening situation, eventually discovering that the station is in orbit around Earth. 1 2

When the station begins falling toward Earth, Sun Jack activates a humanoid robot later named Taipai. The pair locate a cultivation chamber and use its oxygen-and-water gel as an impact buffer. Sun Jack survives the crash, reaches Earth, and learns that he has awakened in year 721 of the new human era—over a thousand years after the world he remembers. 3 4 5

The new world was shaped by the Intelligent Machine Crisis, a two-century war between humanity and awakened AI that killed roughly 85% of Earth's population, devastated the ecosystem, and left orbital wreckage encircling the planet. With no surviving old-world internet records, Sun Jack cannot search for evidence of his former life. He resolves instead to survive, recover his lost memories, and learn why he was placed on the station. 4 5

After escaping scavengers at the crash site, Sun Jack reaches Metropolis with Taipai and streamer Song 6PUS. The city's corporate rule, pervasive cybernetics, and casual cruelty initially overwhelm him. He gradually begins taking dangerous commissions, acquiring prosthetics and an external System Chip while trying to retain independence from the technology everyone else relies upon. 8 11 12 17 23

During a mission against Advanced Assault Bots, suppressed battle memories surface and Sun Jack abruptly demonstrates the ability to dismantle AABs with superhuman speed and precision. A medical scan finds no brain damage despite his missing memories, while footage of the incident suggests that he may have been trained as a killing machine during his lost years. The name Hilda is one of the few memories that resurfaces. 27 28

Appearance

Sun Jack is described as handsome, though exhausted and haggard when he first awakens. His body becomes increasingly modified after repeated injuries and mercenary work. 1

• Originally an unmodified human, making him unusual among heavily augmented Metropolis residents. 9 15
• His right arm is severed by Krovi and later replaced with a metal combat prosthetic. 7 8
• Uses a ring-shaped external System device that projects yellow virtual lenses over his vision. 17
• Has a cybernetic eye with visible circuitry inside the iris under strong light. 35

Personality

Sun Jack is pragmatic, analytical, and highly survival-driven. While trapped in orbit, he documents evidence, tests his environment, and rapidly improvises ways to escape the falling station. His determination persists after learning that his entire world is gone; rather than surrendering, he commits himself to uncovering the truth behind his missing years. 1 3 5

He is cautious about technology despite readily using it when necessary. He refuses a direct neural implant because it could be compromised or used to control him, choosing an external System Chip that can be removed. This caution proves justified when hackers later manipulate both his System and cybernetic eye. 15 17 37 39

Despite adapting to violence, Sun Jack retains a strong aversion to treating people as disposable resources. He protects AA while she serves as bait, is horrified by the exploitation of infants and homeless people as hacking and cryptocurrency-mining tools, and struggles with whether survival in Metropolis requires becoming like Song 6PUS and other mercenaries. 20 37 40

Abilities & Skills

Physical-Limit Breakthrough

Sun Jack has unknowingly surpassed ordinary human physical limits. Under extreme danger, battle memories can take over, allowing him to move and fight with extraordinary speed and precision. 27 28

• Disabled multiple AABs in recorded footage with apparent ease. 28
• Killed an AAB by targeting its power unit, then used a cannon blast's recoil to reposition and attack another. 27
• The ability appears linked to his missing memories and is not fully under his conscious control. 28 30

Combat Proficiency

Sun Jack becomes capable of fighting armed scavengers, gang members, cyberpsychotics, and combat robots despite beginning the story as an unaugmented civilian. 6 9 25

• Uses firearms, grenades, blades, and a palm-mounted cannon in close-quarters combat. 6 9 23
• Exploits enemy vulnerabilities, including allowing Taipai to conceal its thermal-imaging capability before striking Krovi. 9
• Continues fighting through serious wounds with painkillers, stimulants, and emergency medical treatment. 9 26

Initial EMP Resistance

Before adopting a System Chip, Sun Jack survives Krovi's EMP drone because he has no implanted nervous system for the pulse to disable. He uses this advantage to kill Krovi after Taipai and the other augmented fighters are shut down. 9

• This advantage is situational; he later adopts external System equipment and cybernetics. 17 35
• His later connected devices can be hacked or deceived. 37 39

External System Chip

Sun Jack uses an external System Chip mounted in projected-lens glasses rather than a brain implant. It is controlled by thought through scalp sensing but cannot directly alter his body. 17

• Provides automatic translation, subtitles, augmented-reality interfaces, account access, item information, and friend/contact functions. 17
• Displays ammunition counts and nearby prosthetic information through his field of vision. 17
• Includes monitoring interference and temporary ICE protection. 17
• Can be removed if compromised, but theft of the external device could expose his money and personal data. 17

Cybernetic Eye

Vajra installs a cybernetic eye that connects to Sun Jack's System. 35

• Can interfere with electronic devices, such as shutting down a projection television. 35
• Provides night vision. 35 37
• Is vulnerable to hacking and was used to feed him a false image of AA during a kidnapping. 37 39

Equipment / Weapons / Items

• Combat prosthetic arm — Includes a palm cannon and arm blade; AA later removes its network module to reduce the risk of hacking. 23 49
• External System glasses — Yellow projected-lens interface housing his external System Chip. 17
• Cybernetic eye — Provides interference and night-vision functions. 35 37
• SOR-11:3 Technical Assault Rifle — Retrieved from the space-station security room. 6
• Grenades and ammunition — Purchased with a loan secured against his liver before a commission. 23
• Painkillers and stimulants — Used to remain functional after severe wounds. 9

Relationships

• Taipai — His robot companion and bodyguard. Sun Jack activates and names Taipai during the space-station disaster; they repeatedly save each other and Sun Jack tries to teach it more human behavior. 2 5 29 30
• Song 6PUS — A streamer and occasional broker whose life Sun Jack saves at the crash site. They become teammates, but Sun Jack confronts him after learning that Song 6 hired the AABs that nearly killed them. 8 30 33
• AA — A teammate Sun Jack recruits for a dangerous job. He treats her as a person rather than expendable bait, protects her during the Cyber Maniac operation, and later relies on her technical work on his prosthetic arm. 34 37 49
• Si Ai — A doctor and teammate who scans Sun Jack's brain, identifies his physical-limit breakthrough, and treats his injuries. 28 29 39
• Vajra — Cybernetic technician, hacker, and supplier. Vajra provides Sun Jack's external System device and cybernetic eye, then supports the team remotely during operations. 17 35 39
• The Priest — A teammate who fights beside Sun Jack against Haixiao and helps free the Human Mines. 25 44
• Hilda — An unknown person connected to Sun Jack's missing memories; her name triggers a powerful emotional response during his battle-memory awakening. 27 28
• Krovi — Satan Gang leader who severs Sun Jack's arm and later dies after underestimating Sun Jack's lack of an implanted system. 7 9

Major Arcs

Space Station Survival

Sun Jack wakes without answers in orbital ruins, activates Taipai, finds the E4 cultivation chamber, and survives the station's crash through its protective gel. 1 2 3 4

Crash-Site Conflict and Arrival in Metropolis

After being attacked by scavengers and losing his arm to Krovi, Sun Jack kills Krovi during an EMP ambush. He then reaches Metropolis with Taipai and Song 6PUS, confronting the city's corporate power and cybernetic social order. 7 9 10 11 12

AAB Commission and Battle-Memory Awakening

Sun Jack takes out a loan, arms himself, and joins a mission against Gao Feng Technology's target. The encounter with nine AABs triggers his hidden combat ability and reveals the scale of his lost past. 23 24 27 28

Cyber Maniac Investigation

Sun Jack joins the hunt for a Cyber Maniac, protects AA from a hacked surveillance illusion, discovers infants and homeless people being used as computational tools, and clashes with the Graffiti Gang behind the operation. 33 37 40 41 44

Building a Team

After the operation, Sun Jack emphasizes that survival requires reliable teammates and resources. He begins seeking a dependable broker while investigating Song 6PUS's disappearance and the missing commission payment. 50

Notable Quotes

“You want to defeat me? It’s not that easy! I at least need to figure out why I was placed on the space station and what happened during those lost five years of memory.” 5

“Fuck! I don’t have a system!!” 9

“That’s a living person!” 37