Theresa

Biodata

Feature	Details
Name	Theresa
Alias(es)	A-310 490
Species/Race	Synthetic human created through experiments combining the cells of an ancient Valkyrie with those of the Honkai Beast Vishnu 490
Gender	Female
Affiliation	Destiny's Far East Branch; St. Freya Academy 480 1425
Occupation/Role	S-rank Valkyrie; Director of Destiny's Far East Branch; headmaster and founder of St. Freya Academy 480 617 1425
First Appearance	Chapter 71

Background / History

Originally designated A-310, Theresa was born as a synthetic human without parents. Her body stopped aging at the apparent age of twelve, while her inherited Valkyrie and Honkai Beast traits gave her extraordinary physical potential. Otto later adopted her as his granddaughter and gave her the name Theresa Apocalypse. 490 1425

Theresa initially struggled to understand why she should protect humanity. Her bond with Cecilia Schariac gave her a personal answer: she wanted to protect Cecilia and the people Cecilia loved. When Cecilia's daughter was born, Theresa suggested the name Kiana and accepted Cecilia's request to teach and protect her. 490 491

During the Second Honkai War, Theresa failed to protect Cecilia and Kiana as she had promised. The guilt from this failure becomes a central motive behind her later determination to protect Kiana and guide young Valkyries. 491

She secretly arranged an artificial island in the Far East to shelter orphan girls who had been used as experimental subjects, intending to teach them to control their power and eventually return to ordinary life or become Valkyries. This effort developed into St. Freya Academy, where her goal was to train Valkyries who valued their own lives. 73 393 1425

Appearance

Theresa has white hair and the permanently childlike appearance of a twelve-year-old girl, despite being older than many adult Valkyries. 490 640

• Often carries the massive crucifix-shaped Divine Key, the Oath of Judah. 79 480
• Wore her hair in two buns with a Divine Land-style outfit while taking photos with young Kiana. 71
• Wore a miko outfit during the Yae Shrine incident, though she tried to keep the outfit from her students. 573 596
• Her small stature frequently causes others to mistake her for a child rather than an S-rank Valkyrie. 476 927

Personality

Theresa is compassionate toward victims of Honkai experimentation and repeatedly prioritizes protecting children, students, and civilians over institutional rules. Her decision to shelter experimental subjects and later accept Yuno into St. Freya reflects her belief that people with dangerous power should be taught rather than discarded. 73 516

As a headmaster, she is protective and forceful when her students are endangered. Seeing Xing Tian attack Valkyrie cadets immediately enraged her and drove her to intervene without hesitation. 617

She can also be pragmatic and manipulative when she believes it will help someone. Theresa used Kiana's concern for Siegfried to persuade her to enroll at St. Freya and train as a Valkyrie. 480 481

Despite her combat reputation, Theresa is easily frightened by ghosts, haunted locations, and supernatural phenomena. She was nervous while investigating Babylon Tower and panicked when animated objects pursued her in the Yae Shrine. 71 72 584 586

Abilities & Skills

S-rank Valkyrie Physiology

Theresa possesses S-rank Valkyrie combat power and a body regarded as one of Destiny's strongest. Her fighting style heavily relies on overwhelming physical strength, endurance, and close-quarters weapon use. 476 711

• Can wield the Oath of Judah, a weapon far larger and heavier than her body, as a melee weapon. 711 933
• Has exceptional stamina for prolonged combat and can regenerate severed limbs over time. 711
• Easily defeated Destiny mecha units while creating a diversion for Siegfried's escape. 156
• Defeated three Titan Mechs by swinging, throwing, and pulling the Oath of Judah through its chain. 933
• Her strength is not dependent solely on the Oath of Judah; she explicitly demonstrates this while fighting Cocolia's mechs. 933

Oath of Judah Proficiency

The Oath of Judah is Theresa's primary Divine Key. Constructed from Soul Steel nanometal, it can respond to the user's thoughts and shift between several configurations. 79

• Chain deployment — Fires chains to bind targets, anchor Theresa in place, or pull her through hostile terrain. 79 83 141
• Tracking mode — Can shrink to the size of a finger, attach to Theresa's hand, and extend its chains to track a target within a stated maximum range of one hundred meters. 79
• Spear deployment — Produces sharp light spears for binding, ranged attacks, and direct strikes. 480 484 927
• Defensive use — Its Soul Steel body can block physical attacks, including Yuno's vines. 484
• Improvised melee use — Theresa can throw the crucifix by its chain like a meteor hammer or wield its spears like blunt weapons. 933
• Limitation — The Oath of Judah could not block Sirin's intangible Honkai spear in Imaginary Space. 83

Energy-Absorbing Cells

Theresa's Vishnu-derived physiology creates difficulties for External Martial Arts cultivation. Her cells display a hunger for energy and can absorb energy to strengthen her body. 716

• Xu Yanwu's power caused her hands to glow after her cells absorbed it. 716
• Xu Yanwu advised her to wear gloves temporarily while the reaction persisted. 716
• Her Honkai Beast genes make controlling this trait more difficult than for ordinary cultivators. 716

Combat Leadership and Training

As St. Freya's headmaster, Theresa recruits, trains, and supervises Valkyries. She personally decided to train Kiana after learning that Kiana's earlier combat education lacked systematic structure. 498

• Enrolled Kiana, Mei, and Bronya at St. Freya despite the risks surrounding their backgrounds. 480 477
• Provided Kiana with third-generation Valkyrie armor, White Comet, for supervised training. 912 913
• Maintains a training room capable of simulating powerful opponents from a trainee's memories. 913
• Considered repurposing the shrine's self-repairing Hunters as durable training opponents to reduce St. Freya's equipment costs. 593

Equipment

• Oath of Judah — Theresa's Divine Key and primary weapon; capable of chain, tracking, spear, defensive, and heavy melee configurations. 79 933
• Axe of Corruption — A massive axe Theresa temporarily wielded during the Yae Shrine incident; she used it to send Xu Yanwu's Xing Tian body flying and damage its arm. 617
• Feather of Dust replica — A replicated fragment of the Eighth Divine Key given to Theresa by Otto. 482

Relationships

• Cecilia Schariac — Theresa's close friend and the person who helped give her purpose. Cecilia entrusted newborn Kiana to Theresa's protection. 71 490 491
• Kiana Kaslana — Cecilia's daughter and Theresa's goddaughter. Theresa held Kiana as a child, later recruited her into St. Freya, and remains driven by her promise to protect her. 71 480 491
• Siegfried Kaslana — Kiana's father and Theresa's ally. They worked together to rescue Kiana from Destiny, with Theresa creating a diversion for his escape. 150 156
• Otto Apocalypse — Theresa's adoptive grandfather and Destiny's Bishop. Otto gave her orders and resources, but his priorities repeatedly conflicted with her desire to protect her students. 1425 482 927
• Murata Himeko — A colleague at St. Freya who reports directly to Theresa and assists in investigating threats around the academy. 476 477
• Xu Yanwu — An uneasy ally whose interventions range from healing Theresa after Yuno's poison to repeatedly manipulating and teasing her. Theresa remains wary of him but trusts him in critical situations. 490 491 573 617
• Yae Sakura — Theresa encountered Sakura during the Sacrifice Ritual in Saint Mark Space. Sakura cut Theresa's restraints and fled with her, while Theresa attempted to understand and save both Sakura and Higu Maru. 1160 1161
• Yuno — A Pseudo-Herrscher Theresa initially tried to kill to end her suffering. After surviving Yuno's poison, Theresa later supported bringing her into St. Freya. 484 516

Major Story Arcs

Babylon Laboratory Incident

Theresa received an urgent order to investigate the disappearance of 322 researchers from Babylon Tower. Though unnerved by the abandoned facility and the possibility of ghosts, she entered the reactor area with Patrick and confronted the events surrounding Sirin. 71 72 82

After witnessing Sirin's traumatic past in a memory space, Theresa empathized with her suffering and tried to persuade her to abandon revenge. Sirin rejected the appeal and imprisoned Theresa, but Theresa used the Oath of Judah's chain to return and continue confronting her. 82 83

Escape from Destiny

Theresa assisted Siegfried's effort to free Kiana from Destiny. Her role was to create a large-scale distraction while Siegfried escaped with Kiana, although Theresa feared that Destiny's main combat force had been redirected toward him. 150 156

St. Freya Academy

As director of the Far East Branch, Theresa accepted Kiana, Mei, and Bronya into St. Freya. She used knowledge of Siegfried's danger to motivate Kiana, then set the condition that Kiana become at least an A-rank Valkyrie before receiving further information about her father. 480 481

When a new Herrscher was suspected to be forming in Changkong City, Theresa chose to investigate personally. She found Yuno, attempted to end her suffering, and was forced to retreat after being poisoned by Yuno's vines. 481 484

Yae Shrine Incident

Xu Yanwu lured Theresa into the Yae Shrine in a miko outfit, then orchestrated a chaotic pursuit using animated objects and Hunters. Theresa was captured while trying to warn Kiana away from danger, but Kiana instead fought to rescue her. 573 586

Later, Theresa arrived to protect the Valkyrie cadets from Xing Tian. Armed with the Axe of Corruption, she sent the giant body flying with a single blow and raised the cadets' morale. 617 618

Central Church Defense

Otto ordered Theresa to abandon her attempt to assist Kiana and Mei and instead intercept Anti-Entropy forces at Destiny's Central Church. Theresa confronted Cocolia and Ein, then defeated three Titan Mechs with the Oath of Judah. 927 933

The discovery of the Sirin Project's experiment pods shocked Theresa and triggered memories she had long tried to forget. Ein used this revelation to propose communications outside Otto's knowledge. 934

Sacrifice Ritual

Within Saint Mark Space, Theresa chose to pose as a sacrifice rather than force her way through Yae Village. Her plan was to use her position to reach Yae Sakura and confront the resentment left by the sacrificed girls. 1157 1158 1160

Yae Sakura unexpectedly freed Theresa during the ritual, identifying with her situation through memories of Yae Rin. Theresa later showed sympathy toward Higu Maru despite the Herrscher's hatred of humanity. 1160 1161

Parallel-World Counterpart

A separate Theresa appears in a parallel-world storyline as a vampire-like experimental subject who escaped from Destiny. She suffers from uncontrollable blood-drinking urges and can transform bitten victims into infected beings within forty-eight hours. 752 1417 1418

• She is Kallen's sister in this world and carries guilt for people harmed while unable to control her urges. 1420 1430
• Xu Yanwu supplies blood as an emergency measure and seeks a cure for both Theresa and those she infected. 1409 1418 1430
• After reuniting with Kallen, Theresa refuses to flee to Anti-Entropy. She chooses to return to Destiny, accept the consequences of her actions, and help those harmed by Honkai and by herself. 1432 1433

Notable Quotes

“I will bear the consequences of these mistakes!” 1432

“I want to make amends to those who were hurt because of me. I want to get their forgiveness... Even if they don't forgive me, it's okay. I will help more people!” 1433