AA

Biodata

Feature	Details
Name	AA 19
Species/Race	Human; born in a Fertility Factory 49
Gender	Female 36
Affiliation	Sun Jack's mercenary team 49 50
Occupation/Role	Engineer; mercenary recruit and former mission bait 48 49
Status	Active 50
First Appearance	Chapter 19 19

Background / History

AA was born in a Fertility Factory, where children receive bills for their birth and education upon turning sixteen. Failure to repay the debt for over six months allows the factory to repossess organs under its contract; AA has already lost a kidney and half of her stomach. 49

Despite earning a Master's degree in Engineering and placing first academically, AA has been unable to secure stable employment. During one interview, she was prepared to accept extreme workplace requirements, including constant level-six neural excitement, because she could not afford to remain unemployed. 18 48

Sun Jack first encounters AA after she is rejected from employment at the 69 Club. He consoles her, while AA encourages him to continue his own job search. 19 20

Appearance

AA is a petite, thin young woman with short hair and purple-streaked bangs. 18 35 47

• Wore an oversized sky-blue T-shirt that hung loosely on her thin frame when visiting Sun Jack's apartment. 35
• Has small canine teeth, visible when she smiles. 49
• Used a neon umbrella while serving as bait in Puxi District. 36 37

Personality

AA is determined and financially desperate, readily accepting dangerous work when Sun Jack offers it because any paying job is valuable to her. She asks only about the reward before agreeing to act as bait for a possible Cyberpsychosis. 34 36

She remains composed under pressure. During her abduction, AA plants a tracking device on her attacker despite being severely injured, then asks Sun Jack whether she performed well. 37

AA takes pride in her engineering education and becomes visibly discouraged when discussing her repeated job rejections. Her enthusiasm returns when given practical technical work, particularly when Sun Jack asks her to refit his prosthetic arm. 48 49

Abilities & Skills

Engineering and Prosthetic Modification

AA is a trained engineer capable of modifying combat prosthetics and building small devices from scavenged materials.

• Constructed her own tracking ball from useful parts found around Metropolis's Garbage Mountain. 47
• Removed the network module from Sun Jack's prosthetic arm, converting its cannon launcher and arm blade to manual activation and protecting them from remote hacking. 49
• Designed manual triggers inside Sun Jack's little and ring fingers, activated by his thumb. 49
• Her modification removes the arm's shell-count display, aiming assistance, automated self-checks, diagnostics, and fault reports. 49
• Is not yet confident she can modify cybernetic eyes. 49

Fieldcraft

AA can follow operational instructions and improvise while in danger.

• Maintained a decoy route through Puxi District while communicating with Sun Jack through the Nervous System. 36 37
• Attached a tracking ball to her kidnapper's clothing, allowing Sun Jack to pursue the target after her rescue. 37

Equipment / Items

• Self-made tracking ball — secretly attached to her kidnapper during the Puxi District bait operation. 37 47
• Engineering tools — used to disassemble and refit Sun Jack's prosthetic arm. 48 49
• Neon umbrella — carried while acting as bait. 36 37

Relationships

• Sun Jack — Fellow job seeker who becomes AA's employer and protector. He recruits her after learning of her debt and engineering ability; AA addresses him as “boss.” 20 34 49
• Taipai — Sun Jack's AI companion. AA envies Taipai's lack of need for food, while Taipai teases her and questions her suitability for the team. 36 48 49
• Si Ai — Treated AA's abdominal injury after the bait mission; AA later worries about repaying her medical fees. 39 46

Story Role / Major Arcs

Employment Struggle

AA appears as an unemployed applicant facing Metropolis's exploitative labor market. After being rejected by the 69 Club, she meets Sun Jack, who recognizes that her desperation mirrors his own struggle to find work. 19 20

Cyberpsychosis Bait Mission

Sun Jack recruits AA to serve as bait for a 3@ reward in the hunt for a suspected Cyberpsychosis killer. Though warned of the danger, AA immediately accepts. 34 36

During the operation, a hacker falsifies Sun Jack's vision and abducts AA. Her tracking ball gives Sun Jack the means to chase the kidnapper, while Si Ai treats AA's opened abdominal wound after her rescue. 37 39 46

Recruitment to Sun Jack's Team

After the mission, AA reveals her engineering qualifications and refits Sun Jack's cybernetic arm into a manual-only configuration. Impressed by her skill and aware of her debt, Sun Jack offers her a place as a mercenary under his protection. 48 49

Sun Jack later identifies AA as part of the team he is building independently of Song 6PUS. 50

Notable Quotes

“I'm not useless, you know. I had a Master's degree in Engineering when I was in school.” 48

“Jack, am I... am I doing a good job?” 37

Trivia

• AA says she does not like men or women; when asked what she does like, she expresses affection for her own reflection. 47
• She initially offers Sun Jack mushrooms gathered from sewers when he asks whether she has found work. 34