Sitangna

Biodata

Power Progression

Background and History

Original Life and Assigned Identity

Tangna signed a system contract shortly before dying and entered the BBC version of Sherlock as her first mission world. Candy supplied her with an adjusted appearance, simulated memories, and the identity of Sitangna, Mrs. Hudson’s Chinese-British niece 2 23.

Sitangna’s background follows the broad course of Tangna’s life: her parents divorced when she was young, her maternal grandparents raised her, and both parents later formed new families. She began piano lessons in middle school but could not afford an instrument, practicing in empty rooms at the piano shop instead. Seeing her younger sister’s expensive grand piano exposed how little her parents knew about her interests 23 24.

The mission identity differs sharply in financial circumstances. Sitangna belongs to a wealthy family and receives substantial pocket money, whereas Tangna remembers poverty and a lack of parental attention. Her Cambridge doctoral exchange represents another possible course Tangna’s life might have taken 3 24.

Arrival at Baker Street

Sitangna moves into Mrs. Hudson’s attic and quickly becomes involved in Sherlock and Watson’s investigations. Her university partnership program requires periodic project work rather than routine classes, allowing her to live in London and accompany them on cases 2 3.

During the bomber investigation, she uses her knowledge of the television series to recognize clues and help protect a hostage. Sherlock brings her along under the cover of a reporter, while Moriarty notices that the detective has acquired another capable assistant 3 4 5.

The Pool Confrontation

Knowing Sherlock intends to meet Moriarty, Sitangna secretly follows him and sends her location to Mycroft. At the pool, she uses a strength pill to kick Moriarty into the water and helps Sherlock remove Watson’s bomb vest 10 11.

The pill expires before the bomb detonates, leaving her unable to run. All three survive without serious injury, and Sherlock carries her outside. The experience leaves her with trauma associated with explosives; afterward, even an oven makes her keep her distance 11 16.

Emily Cavendish’s Rescue

While helping protect Emily, Sitangna notices that a scented candle has been altered. She later wakes to an unusual smell in Emily’s bedroom, where Sherlock identifies a hallucinogen concealed in her perfume 13.

During the subsequent kidnapping case, Sitangna connects Victor’s pipe organ with a possible means of disabling Emily’s bomb. Using a temporary skill card, she plays Bach’s “Air on the G String”; the organ’s sound disables the pressure sensor and allows Emily to overpower Victor 17.

Christmas and the Holmes Family

Sitangna initially worries that her academic responsibilities will cost her opportunities to advance her mission. Candy explains that her work, responsibilities, and individual personality are part of building a meaningful connection with Sherlock, rather than distractions from it. She attends the Cambridge project meetings despite missing the Hound investigation 21 22.

At Christmas, Emily gives her a piano, and Sitangna performs with Sherlock. He kisses her beneath the mistletoe and later gives her a custom perfume and blue diamond necklace 25 27 29.

Sitangna subsequently accuses Sherlock of engineering the mistletoe incident to use her as a shield against Molly’s feelings. After he shows her that the tree disturbance was accidental, she apologizes. Their conversation turns to his feelings, and he later presents evidence of his strong emotional attachment to her 30 31 32.

For New Year, Sherlock takes Sitangna and Watson to his family home. She joins their snowball fight and teaches the Holmes family to make dumplings 38 39.

Museum Attack and Captivity

Sitangna accompanies Sherlock and Watson as the Cavendish investigation develops into a wider conspiracy. At the museum, Professor Ashton releases a hallucinogenic neurotoxin, and she and Watson try to protect the affected Sherlock 34 35 43.

Moriarty’s men abduct her and take her by helicopter to a private laboratory supplied by Ashton. Staff draw nearly 400 milliliters of blood, leaving her weak, while Candy obtains specialist assistance to clear the toxin. A new side mission requires her to escape the laboratory 45.

Moriarty then cuts her arm without anesthesia to study her reactions. Candy helps her meditate and strengthen the effect of a painkiller afterward. By Chapter 49, her tracker leads to Sherrinford, and Eurus promises Sherlock that Sitangna will remain safe until he arrives; no rescue is shown in the supplied material 47 48 49.

Appearance

• Hair and complexion: Glossy black hair and fair skin 19 32.
• Eyes: Large, lighter than the brown Sherlock commonly associates with Asian eyes, with upturned, catlike corners. They curve into crescents when she smiles 2.
• Build: Slender waist and a well-proportioned figure 2.
• Arrival outfit: A long black trench coat, black suit trousers, and a belt with a palm-wide metal buckle 2.
• Character-creation changes: Enlarging her eyes was her most substantial facial adjustment 2.

Personality

Sitangna is adaptable, playful, and quick to find humor in the people around her. Although initially overwhelmed by meeting characters she admired on screen, she soon settles into Baker Street’s routines and investigative work. Her cheerful manner coexists with shyness around unfamiliar people 2 3 10 19.

She expresses affection through practical care: keeping Mrs. Hudson company, treating her flatmates’ wounds, preparing food, and helping Molly during busy hospital work. Molly remains unable to dislike her even after recognizing Sherlock’s feelings for her 7 8 27.

Her strongest internal conflict concerns sincerity. She dislikes treating affection as a numerical mission objective and fears that pursuing Sherlock for rewards amounts to playing with his feelings. Despite her many fictional favorites, she describes herself as single-minded about genuine emotional commitment 8.

She is resilient rather than fearless. She refuses to let her childhood define her, but real violence frightens her, and confrontation can make her cry before she has finished explaining herself. When she realizes she has wrongly accused Sherlock, she admits her mistake and apologizes 11 24 30 31.

Abilities and Skills

Investigation and Prior Plot Knowledge

• Recognizes events and identities from the original television series, including the bomber’s games and Moriarty’s disguise as Jim 3 6.
• Uses observation to support deductions, such as tracing disinfectant on a cat’s claws to a cleaned floor and noticing Emily’s altered candle 4 13.
• Has read some social psychology, but explicitly regards her knowledge as basic rather than expert 4.
• Limit: Her interventions change events. Candy knows the original plot but cannot use plot deduction at their current level, making later developments increasingly uncertain 11 16.

Music

• Plays piano and can sing along to her own accompaniment, as demonstrated by “Song of the Chile” 19.
• Shows exceptional emotional expression despite technique limited by years without regular access to a piano 23 27.
• Learns quickly enough that Candy mistakes her improvement for a lingering skill-card effect 27.
• Uses a temporary skill card to perform on Victor’s pipe organ; this is distinct from her unaided piano ability 17 27.

Cooking and Household Care

• Makes lemon Basque cheesecake, candy apples, and cola chicken wings 20 22 23.
• Shares her cheesecake recipe on her blog after her fellow researchers request it 22.
• Organizes the Holmes family’s dumpling-making by assigning tasks and teaching the preparation 39.
• Provides basic wound cleaning and disinfection, including reminders to keep injuries dry 7 8.

System Support

• Language assistance: Her assigned background enables her to speak Chinese and English fluently, compensating for Tangna’s weaker English. Unfamiliar vocabulary can still require Candy’s translation 4 19.
• Energy collection: Attention from a world’s protagonists generates energy, primarily through mental power. Villains such as Moriarty also qualify 7.
• Mission assistance: Candy provides routes, information, bodily scans, and access to purchasable items 10 16 45.
• Life-saving safeguard: She retains an unused life-saving skill during Moriarty’s experiment; it does not prevent fear or pain 47.
• Energy requirement: Leaving the energy bar depleted for more than three days triggers escalating life-point deductions, with erasure on the fourteenth overdue day 8.
• Restrictions: System intervention must remain within the world’s permitted rules. Candy cannot simply make her body impervious to surgical cutting 46.

Equipment and Items

• Basic cheating device: Purchased for five quest points. A single-use, sticky-note-like item that accepts a written wish and can ignore rules or restrictions within ten kilometers. Purchase is limited to once per world; its use is not confirmed in the supplied passages 5.
• Strength pill: Provides a one-minute enhancement, enabling her rapid attack on Moriarty. Its expiration leaves her legs too weak to carry her away from the bomb 11.
• Infrared heat-signature jammer: Conceals her from the pool attackers’ scanning equipment while she remains stationary and out of sight 11.
• Temporary musical skill card: Used to play the pipe organ and disable Emily’s bomb sensor 17.
• Voice recorder: Supplied by Sherlock when he asks her to pose as a reporter 3.
• Yamaha SU7 piano: A Christmas gift from Emily, identified by Janet as worth around €30,000 25.
• Custom perfume: Blended by Sherlock with pear, white peony, tea, and cedarwood notes 29.
• Two-carat blue diamond necklace: Given to her by Sherlock using Mycroft’s diamond; its chain initially forms part of the perfume bottle’s presentation 29.

Relationships

• Sherlock Holmes — Idol, flatmate, investigative partner, and romantic interest. Their bond develops from her excited admiration into mutual emotional attachment, though Sherlock initially struggles to classify his feelings as love 2 27 31 32.
• John Watson — Flatmate and close friend. He welcomes her, worries about her safety, praises her rescue efforts, and joins Mrs. Hudson in teasing her about Sherlock 2 10 11 19.
• Mrs. Hudson — Distant aunt within her mission identity and an increasingly important source of family affection. Sitangna comes to regard her as her only family in the other world 2 7 22.
• Candy / Guoguo — System partner, guide, and confidante. Both are undertaking their first task; they work through disagreements about mission ethics and aim to rise through the strategy rankings together 3 8 22.
• Mycroft Holmes — Initially approaches her with payment for reports on Sherlock. She later sends him the pool location and invites him to the Christmas gathering 7 10 25.
• Emily Cavendish — Friend and rescue beneficiary. They bond over cosmetics and perfume, and Emily later gives her the piano 13 17 25.
• Molly Hooper — Friend whose affection for Sherlock complicates the Christmas kiss. Molly nevertheless considers Sitangna kind and considerate rather than blaming her 27.
• Jim Moriarty — Adversary whose interest in her escalates from noticing her investigative contribution to abducting and experimenting on her 4 45 47.
• Lilian — Senior colleague and friend whom Sitangna admires for her straightforwardness and loyalty 20 22.
• William Blake — Senior project colleague who offers her transport home. Sherlock’s intrusive deductions about him prompt Sitangna to apologize on Sherlock’s behalf 20 21.
• Eurus Holmes — Knows about Sitangna before Sherlock learns of her involvement. Later holds her at Sherrinford as part of the crisis confronting him 41 49.

Notable Quotes

“Don't worry. Everything's only just begun, hasn't it?” 3

“You believe feelings should be sincere and free of ulterior motives.” — Candy’s assessment of Sitangna’s resistance to her mission 8

“I thrived in adversity, and I never admit defeat, no matter what.” 24