Dugu Yan

Biodata

Appearance

• Emerald eyes: Particularly emphasized when she witnesses Yu Tianheng’s poisoning 33.
• Serpentine transformation: When her Martial Soul possesses her, her lower body becomes that of a serpent 30.
• Illness-related changes: Emerald-green snake scales emerge across her skin during an attack of her condition 62.
• Declining health: By the time she asks Ning Chengyi to examine her poison, her complexion is extremely poor and she appears gravely ill 63.

Personality

Dugu Yan is proud of her poison expertise and initially treats Ning Chengyi with open contempt. During their first match, she demands that he kneel, apologize, and call her his grandmother in exchange for an antidote. Her confidence leaves her vulnerable to his feigned poisoning: she approaches him believing he can no longer fight 31.

She is protective of her teammates. When Yu Tianheng and Ye Lingling are poisoned, she challenges Ning Chengyi to direct his anger at her instead, arguing that she was the one who first used poison 34.

Her competitiveness becomes an obsession with understanding Ning Chengyi’s resistance. She uses Zhu Zhuqing’s message to lure him into another confrontation and continues attacking even after being defeated. During that encounter, the narration depicts her developing a masochistic response to his rough treatment; Ning Chengyi speculates that prolonged venom exposure has affected her behavior, but this is not established as a diagnosis 60 61 62.

Despite her earlier hostility, she eventually stops disrupting his training and approaches him quietly for help with her worsening condition 63.

Abilities & Skills

Jade Phosphorous Serpent

A control-type Martial Soul associated with venom, also wielded by her grandfather, Dugu Bo 31.

• Transforms her lower body into a serpent’s form during Martial Soul Possession 30.
• Allows her to attack with poisonous gas and move toward an opponent in serpentine form 31 62.

Third Soul Skill: Jade Phosphor Purple Poison

Releases a thick purple poisonous mist that can engulf an opponent and obscure them from outside observers 31.

• The poison attacks both the target’s body and Soul Power 31.
• Dugu Yan claims that exposure causes vomiting and can rapidly become fatal 31.
• Ning Chengyi’s Phantom Butterfly absorbs the poison without harming him 31.
• Its concealment becomes a tactical liability: Ning Chengyi uses the mist to hide his second Martial Soul and prepare his own poison attack 33.

Poison Formulation

Dugu Yan develops and stores poisons independently of her Soul Skills 61 62.

• Ten Fragrances Fright-Dividing Bone-Crushing Powder: A poison she spent nearly two years developing. Ning Chengyi neutralizes it during their courtyard confrontation 61.
• Stored poison mixtures: She carries bottles and jars in her Storage Ring and releases their contents to create spreading poison mist 62.
• Known counter: Ning Chengyi’s Phantom Butterfly Spirit Tide purifies her released mixtures and converts them into Soul Power 62.

Snake-Venom Illness

Equipment / Items

• Storage Ring — Holds the bottles and jars of poison used in her renewed attack on Ning Chengyi 62.
• Poison containers — Allow her to deploy prepared mixtures without first using a Soul Skill 62.

Relationships

• Dugu Bo — Her grandfather, the Jade Phosphorous Douluo. He affectionately calls her his precious granddaughter, and she invokes his protection when Ning Chengyi threatens her 31 62.
• Yu Tianheng — Teammate and romantic pursuer. She becomes embarrassed when Yu Shuo calls her “sister-in-law,” while Yu Tianheng reacts furiously to her injury. Their formal relationship status is not established in the supplied passages 31 32.
• Ning Chengyi — Initially an opponent and target for revenge. His repeated resistance to her poisons frustrates her, but she ultimately seeks his help with her own poisoning 31 61 62 63.
• Ye Lingling — Teammate whose Nine Heart Begonia heals Dugu Yan’s injuries, including her broken arm, during the academy match 32.
• Zhu Zhuqing — Entrusts her with a message asking where Ning Chengyi is and whether he still remembers her. Dugu Yan uses the message to arrange a confrontation with him 60 61.
• Xue Mingyan — Seeks retaliation after being humiliated by Ning Chengyi. Dugu Yan gives him a letter to deliver and promises to test Ning Chengyi’s strength 60.

Story Role / Major Arcs

First Match Against the Heavenly Apex Class

Dugu Yan joins the Imperial Fighting Team’s match against the Heavenly Apex Class and follows Yu Tianheng’s instruction to target Ning Chengyi with poison. Ning Chengyi deliberately isolates himself to attract her attention, then pretends her purple mist has severely poisoned him 29 30 31.

When she closes in to finish the fight, he suddenly activates his first Soul Skill. His spear strike breaks her defending arm and knocks her out of the arena. Ye Lingling heals her injuries, but her elimination prevents her from returning to help as Ning Chengyi’s concealed poison incapacitates Yu Tianheng and Ye Lingling 32 33.

After the Imperial Fighting Team surrenders, Dugu Yan confronts Ning Chengyi over his refusal to cure her teammates. He eventually detoxifies them with his blood, and she leaves with a warning that she will remember him 34.

Zhu Zhuqing’s Message and the Courtyard Trap

Following the Imperial Fighting Team’s defeat in Suotuo City, Zhu Zhuqing privately asks Dugu Yan about Ning Chengyi and entrusts her with a message. Dugu Yan later uses it as bait, sending a letter that requires him to visit her secluded academy courtyard 60 61.

There, she tests her specially developed poison on him and makes defeating her a condition for hearing the message. Ning Chengyi overcomes the poison and restrains her with a dagger, forcing her to relay Zhu Zhuqing’s questions. Her renewed attack also fails when his Phantom Butterfly Spirit Tide purifies her mixtures 61 62.

After he leaves, Dugu Yan visits Dugu Bo’s residence and conceals her intentions behind an upset demeanor. While cultivating in her room, she suffers another severe venom episode and calls Ning Chengyi’s name 62.

Request for Treatment

The Imperial Fighting Team suffers another decisive defeat against the Heavenly Apex Class. Dugu Yan subsequently leaves Ning Chengyi undisturbed, occasionally visiting his training area but withdrawing when she sees how intensely he is cultivating 63.

After another year passes, she again invokes Zhu Zhuqing’s message to ask him to accompany her. Once they return to her courtyard, she reveals her actual request: to examine the poison afflicting her. Seeing her sickly condition, Ning Chengyi agrees 63.