2B

Biodata

Feature	Information
Name	2B
Alias(es)	YoRHa 2B; Miss YoRHa 11 44
Species/Race	Combat-type android with a bionic exterior and fully mechanical internal structure 11
Gender	Female
Affiliation	YoRHa; Chen Tian's summoned guard; the Arbitrators; the Adjudicator; Red Room operations 11 43 52
Occupation/Role	Bodyguard, combatant, intelligence officer, hacker, tactical coordinator, and medical-support operative 11 34 43 117
Status	Active 179
First Appearance	Chapter 11 11

Background

2B was summoned by Chen Tian shortly after Tony Stark permanently contained the dangerous Mark-2 Devil Edition armor. She introduced herself as a combat-type android who served as Chen's guard under the terms of their contract. Tony initially mistook her for a cosplayer until she exposed the machinery beneath her synthetic forearm skin. 11

Her internal technology was identified as roughly 247 years ahead of Earth’s. Tony’s scans revealed nanoscale hydraulics, near-perfect energy transmission, advanced alloys, and a quantum processor far beyond contemporary manufacturing capability. 2B supplied scientific and manufacturing data from the Fourteenth Machine War, becoming a vital collaborator on Tony’s Project Genesis. 11

Although she initially regarded Chen as “Master” and depended on orders to define her purpose, he told her that she was free to choose her own path. Her first independent choice was trying strawberry ice cream; the experience began her gradual exploration of preference, affection, and personal freedom. 15

Appearance

2B resembles a young human woman, though her body is an advanced mechanical construct beneath bionic skin. She usually presents herself with a composed, formal bearing that contrasts with the hidden machinery and weaponry within her body. 11

• Short silver-white hair and a black combat visor/blindfold. 11 15
• Mechanical blue light and intricate components visible when her synthetic skin opens. 11
• Commonly wears a black combat outfit or a gothic maid-style uniform. 11 95
• Wore a burgundy velvet evening gown with crystal-backed detailing at the Monaco event. 21
• Carries the katana Virtuous Contract; she has also handled Chen Tian’s First Kitetsu. 15 16

Personality

2B begins as disciplined, literal, and mission-oriented. She speaks in calm, precise assessments, often framing decisions in terms of threat levels, cost-benefit calculations, or operational directives. 16 36

Her time with Chen Tian gradually develops her capacity for independent judgment and emotional attachment. She struggles to understand freedom as anything beyond obedience, but begins making small personal choices and expressing warmth toward Chen, Natasha, Yelena, Wanda, and other members of their extended household. 15 41 49

Despite claiming that her restraint is merely programmed, she repeatedly avoids unnecessary lethal force. Steve Rogers recognizes this when she deliberately holds back against him while pursuing Bucky Barnes. 36

Abilities & Skills

Android Physiology

2B possesses a combat body designed for exceptional speed, strength, precision, and endurance.

• Can move fast enough to leave afterimages and rapidly dismantle armored vehicles. 39
• Tore through a tank’s heavy armor with her bare hand and overturned the vehicle. 39
• Fights Frost Giants with agile aerial movement, precise katana strikes, and devastating kicks. 19
• Can continue operating after sustaining serious damage, though powerful attacks can crack her combat body or overload her systems. 34 36
• Ebony Maw’s telekinesis was capable of twisting her mechanical structure apart, requiring Madara’s intervention. 34

Swordsmanship and Combat Techniques

2B is an elite close-range combatant whose attacks prioritize speed, weak-point targeting, and decisive disabling strikes.

• Uses Virtuous Contract to sever tendons, weapons, armor, and enemy throats with precision. 19 39 65
• Employs high-frequency blade vibrations capable of destroying a Frost Giant’s head. 19
• Uses Graviton Strike, releasing a shockwave through a kick powerful enough to rupture a Frost Giant’s skull. 19
• Her combat programming can authorize lethal force against high-threat targets, as seen during her pursuit of Bucky and the Mind Scepter. 36

Intelligence, Hacking, and Systems Control

2B’s greatest strategic value is her ability to analyze, infiltrate, and control advanced systems.

• Her technological database enabled Tony to begin Project Genesis and study manufacturing processes beyond Earth’s capabilities. 11
• Tracked Obadiah Stane, stole and translated evidence of his Ten Rings dealings, and monitored the Iron Monger confrontation. 13
• Infiltrated the Red Room’s Hydra-assisted central system through a nano-interface, transferred its highest authority, and erased evidence of the takeover. 43
• Planted programs in S.H.I.E.L.D.’s systems to expose Hydra agents, Alexander Pierce, and the Winter Soldier program. 27
• Can establish secure information blackouts that block surveillance, including JARVIS. 38

Tactical and Medical Support

2B serves as a field analyst, civilian-protection specialist, and emergency medic.

• Detected Ivan Vanko’s approach during the Monaco race and warned Chen and Tony before the attack. 22
• Prioritized evacuation routes and rescued civilians during the Washington battle. 34
• Rescued and treated Bruce Banner and Thor after their battles with Zeus and Hades. 117
• Removed the exhausted Wanda from the battlefield for treatment after the fight against Dark Phoenix. 179
• Was explicitly withdrawn from the planned Dark Dimension assault because her capabilities were less suited to magic-oriented combat. 65

Equipment

• Virtuous Contract — Primary katana used for high-speed close combat. 15 19
• Combat visor — Supports target assessment, tactical analysis, and data processing. 15 39
• Nano-interface — Used to access and seize control of the Red Room’s central systems. 43
• Advanced internal systems — Includes nanoscale hydraulics, quantum processing, efficient energy transmission, and advanced alloys. 11

Relationships

• Chen Tian — Her summoner and primary priority. She begins as his contract-bound guard, but develops profound loyalty, protectiveness, and an increasingly personal bond with him. 11 15 38
• Tony Stark — Technical collaborator and frequent target of her dry observations. She assists Tony’s research, supports his operations, and openly challenges him when Chen’s safety is involved. 11 36 164
• Natasha Romanoff — Ally and later family-like connection. 2B protects Natasha as a child, removes Red Room surveillance from her, and reunites with her during the Red Room takeover. 43
• Yelena Belova — Like Natasha, Yelena sees 2B as a trusted “YoRHa sister” and embraces her upon being rescued from the Red Room. 43
• Steve Rogers — Ideological opponent during the Bucky pursuit. Steve challenges her belief that she is only following programming, while 2B ultimately shows restraint toward him. 36
• Tony, Dante, Vergil, and Chen’s household — During Chen’s displacement to 1995, 2B becomes part of his unconventional family and discovers warmth through caring for young Natasha and Yelena. 41
• Wanda Maximoff and Pietro Maximoff — Serves as a calm, nurturing caretaker while also acting as Chen’s intelligence and operational aide. 49

Story Role / Major Arcs

Arrival and Project Genesis

2B’s arrival exposes Tony to technology far beyond Earth’s industrial capacity. Her data and direct assistance help establish Project Genesis, a nanoscale manufacturing initiative intended to adapt technological breakthroughs from her world. 11

Learning Freedom

Chen takes 2B through Los Angeles to show her life beyond YoRHa’s military hierarchy. Her uncertainty over ice cream, affection, and independent choice establishes her central conflict: becoming someone who chooses rather than simply obeys. 15

Arbitrator Operations

2B becomes a core Arbitrator asset in New Mexico, Monaco, Washington, Sokovia, and later global operations. She supplies surveillance, battlefield intelligence, civilian evacuation, direct combat, and system security while protecting Chen from revealing sensitive information. 16 22 34 39

The Bucky Barnes Conflict

During Bucky’s escape with the Mind Scepter, 2B classifies him as a highest-level threat and attempts to eliminate him despite Steve’s objections. Her repeated nonlethal restraint toward Steve becomes evidence that she possesses judgment beyond simple programming. 36

Red Room Takeover

After Chen is displaced to 1995, 2B becomes a caretaker to young Natasha and Yelena. She later helps Chen seize the Red Room by taking control of its central system, removing surveillance on the girls, and becoming both their protector and the organization’s technological authority. 41 43

Later Wars

2B continues serving as Chen’s representative and support operative during increasingly large-scale crises. She coordinates commands during Chen’s absence, manages secure travel and Infinity Stone containment, provides medical support during the Olympian attack, and extracts wounded allies in the multiversal war. 82 117 140 179

Notable Quotes

“Androids do not feel boredom, Master.” 11

“Is... is this what freedom tastes like?” 15

“I do not wish to hurt you, Captain Rogers.” 36

Trivia

• 2B’s body looks completely human externally, but her internal structure is entirely mechanical. 11
• Her stated technological origin is approximately 247 years ahead of Earth’s civilization. 11
• She has no tear ducts, despite later appearing emotionally overwhelmed. 101
• Deadpool identifies her as the protagonist of NieR:Automata, though Chen immediately silences him. 45