Dugu Yan

Biodata

Feature	Details
Name	Dugu Yan (Yanzi; 雁子)
Alias(es)	“Jade Phosphor Poison Girl”
Gender	Female
Affiliation	Heaven Dou Royal Academy; Imperial Fighting Team
Occupation/Role	Control-type Battle Soul Elder; Imperial Fighting Team vice-captain
Status	Alive
First Appearance	9

Power Progression

Stage / Realm / Level	Chapter	Notes
Level 36 Soul Elder	9	Introduced as the control-type arena fighter “Jade Phosphor Poison Girl,” wielding the Jade Phosphorous Serpent Martial Soul.
Level 39 Soul Elder	33	Refines the Nine-Grade Dragon Ganoderma, gaining three Soul Power levels and a bloodline transformation that may allow her Martial Soul to evolve into the Jade Phosphorous Serpent Emperor upon reaching Soul King.

Background & Story

Dugu Yan is the granddaughter of Poison Douluo Dugu Bo and inherited the Jade Phosphorous Serpent Martial Soul. Her parents died because the hereditary venom eroded their bodies and meridians; Dugu Bo concealed this truth from her for years, claiming her recurring pain during rainy weather was a cold-related ailment. 27 28

She first faces Gu Feng in a solo match at the Heaven Dou Great Soul Arena. Confident that her poison makes her invincible against opponents of a similar rank, she is instead countered by his wind barrier and Vacuum technique, then harmlessly pushed out of the arena. Although humiliated, she acknowledges that he held back and vows to defeat him in a future rematch. 10 12

After Gu Feng and Ning Rongrong join the Imperial Fighting Team, Dugu Yan becomes their teammate and is assigned to coordinate her venom with Gu Feng’s wind manipulation. During their first group exercise, rainy weather triggers her poison backlash; her uncontrolled Jade Phosphor Purple Poison nearly harms the team before Gu Feng contains it and identifies the real cause of her collapse. 26 27

Dugu Yan confronts Dugu Bo and learns the truth about her family’s inherited poisoning. Gu Feng later negotiates access to Dugu Bo’s medicinal garden in exchange for treating the Dugu family, then gives Yan the Nine-Grade Dragon Ganoderma. The herb raises her cultivation to level 39, strengthens her body, and transforms her Martial Soul bloodline. Her poison remains a danger, but Gu Feng states that a suitable Soul Bone and his sealing method can protect her life if obtained within two years. 28 30 32 33

Appearance

Dugu Yan has ink-green hair that falls over her shoulders, a tall build, and long, slender legs. She first appears in a form-fitting purple-black combat outfit and long boots. 9 10

• During Martial Soul possession, her legs merge into a thick jade-green snake tail.
• Fine emerald scales cover her upper body.
• Her transformed appearance carries a bewitching, serpentine aura. 10

Personality

Dugu Yan is proud, sharp-tongued, and highly confident in the power of her poison. She initially reacts badly to her defeat by Gu Feng, but she refuses to rely on Yu Tianheng to avenge her and insists on improving enough to win herself. 10 12

Despite her arrogance, she values fair competition and openly states that victory and defeat are decided by ability. Her confidence is tempered after witnessing Gu Feng defeat Yu Tianheng, at which point she recognizes that his strength is far beyond what their first match revealed. 13 24

She also tends to hide pain rather than burden her teammates. During the wind-poison training exercise, she suppresses severe internal agony and insists on continuing until her condition becomes critical. Learning the truth about her family’s poison reveals a more vulnerable side, but she directly confronts Dugu Bo rather than accepting his comforting lies. 26 28

Abilities & Skills

Jade Phosphorous Serpent Martial Soul

A poison-attributed control Martial Soul that grants Dugu Yan serpentine transformation and access to highly lethal venom attacks. 10

• Produces poison capable of corroding, paralyzing, and incapacitating opponents.
• Its venom can be shaped into mist or larger constructs for area control.
• The Martial Soul’s inherited poison accumulates inside its wielder, corroding meridians, organs, and bone marrow over time. 26 28
• Rainy, cold, and damp weather can trigger severe poison backlash. 25 26

Jade Phosphor Red Poison

Her first Soul Skill enhances her own physical combat ability. 10

• Greatly increases her speed and attack power.
• Is used after activating her Jade Phosphorous Serpent possession. 10

Jade Phosphor Blue Poison

Her second Soul Skill releases deep-blue poisonous mist. 10

• Causes powerful paralysis upon contact with skin.
• Can be dispersed or blocked by sufficiently rapid airflow, as shown in her match against Gu Feng. 10

Jade Phosphor Purple Poison

Her third and strongest documented Soul Skill creates dense dark-purple poisonous mist. 10

• Possesses corrosive and paralyzing properties capable of seriously injuring same-ranked assault-type Soul Masters.
• Can gather into a giant serpent-shaped poison construct. 10
• When her internal venom becomes unstable, the mist may disperse uncontrollably and endanger allies. 26

Wind-Poison Coordination

Qin Ming designates Dugu Yan and Gu Feng as the Imperial Fighting Team’s principal control-and-breakthrough combination. 26

• Gu Feng’s wind can guide, accelerate, redirect, or compress Dugu Yan’s poison mist.
• The tactic is intended to split enemy formations and create a lethal controlled area.
• It requires Dugu Yan’s Soul Power circulation to remain stable; her poison backlash disrupted the first training attempt. 26

Relationships

• Dugu Bo — Her grandfather and guardian. He hides the hereditary danger of their Martial Soul to protect her, then humbles himself before Gu Feng to seek treatment for her. 28 30
• Yu Tianheng — Teammate and the person she loves. He is deeply protective of her, while she rejects attempts to have him avenge her defeat and later reaffirms that he is the only one in her heart. 12 26 33
• Gu Feng — Former arena opponent and later teammate. He defeats her without injury, discovers her venom backlash, helps stabilize her, and provides the Dragon Ganoderma that advances her cultivation and Martial Soul. 10 26 32 33
• Ning Rongrong — Initially a rival who argues with her over Gu Feng’s victory; the two later develop a playful friendship and tease each other. 13 22 29
• Ye Lingling — Teammate and healer. She stabilizes Dugu Yan after her collapse and escorts her back to Dugu Manor. 10 27
• Qin Ming — Her instructor, who recognizes the tactical value of combining her poison with Gu Feng’s wind control. 26

Notable Quotes

“Victory and defeat on the arena depend on one's own ability. I, Dugu Yan, can afford to lose!” 13

“I don't need you standing up for me. Next time I run into him, I'll win it back myself.” 12

“Besides, Tianheng is the only one in my heart, so stop playing matchmaker!” 33