Dugu Yan

Biodata

Feature	Value
Name	Dugu Yan (独孤雁)
Alias(es)	Yanyan; Yan Yan 73 80
Gender	Female
Affiliation	Heaven Dou Royal Academy; temporarily attends lessons at Blue Tyrant Academy 22 106
Occupation/Role	Student; control-type Battle Soul Master; medicinal and poison-refining instructor to Chu Men 32 70 100
Martial Soul	Jade Phosphor Snake 74
Innate Soul Power	Level nine 21
Documented Soul Power	Level twenty-seven, Soul Grandmaster 35
Family	Granddaughter and only descendant of Dugu Bo, the Poison Douluo 80
Status	Alive; present at the Ice and Fire Yin-Yang Well 120
First Appearance	Approaches Chu Men after his public lecture at Blue Tyrant Academy 20

Power Progression

Stage / Realm / Level	Chapter	Notes
Innate Soul Power: level nine	21	Reports her awakening talent to Chu Men.
Soul Grandmaster: level twenty-seven	35	Advances after Chu Men's Status Inversion calms a venom outbreak triggered by pufferfish poisoning. Her poison resistance rises beyond the active toxicity.
Martial Soul Fusion awakened	72 73 74	Her Soul Power resonates with Chu Men's Inversion Pen, producing a snake-shaped engraving. Liu Erlong confirms high compatibility between their martial souls.
Martial Soul Fusion demonstrated in combat	98	Their fusion strengthens the pen's effects against snakes and poison. Dugu Bo assesses their combined combat strength as Soul King-level, limited partly by Dugu Yan's low cultivation; this is not an individual realm breakthrough.

Appearance

Dugu Yan is tall and slender, with short, deep-purple hair, fair skin, and faint emerald-green pupils. Her first appearance emphasizes her striking looks and an unruly, coldly alluring expression 20 21.

• Academy clothing: Wears the Heaven Dou Royal Academy uniform when she first approaches Chu Men 20.
• Personal clothing: Later wears a fitted purple outfit decorated with green snake patterns and silver snake-shaped earrings 31.
• Snake-like traits: Her pupils can narrow into vertical slits; pale-green scales appear along her neck when her martial soul possesses her body 72 98.

Personality

Dugu Yan is outspoken, willful, and unusually direct. During her first conversation with Chu Men, she asks about his cultivation, family, and relationship status, then persists in following him despite his attempts to leave. Her grandfather's protection gives her confidence when dealing with stronger or more authoritative people 21 67.

She dislikes repetitive cultivation but strongly desires its rewards. Her ambition is to become a Titled Douluo like Dugu Bo and receive the world's admiration. The Fire Dragon Battle Armor attracts her because it offers powerful results without the long wait associated with conventional advancement 21 62.

Her competitiveness can become reckless: she continues eating poisonous pufferfish to keep pace with Chu Men and initially refuses to admit that she has been poisoned out of embarrassment. Conversely, she takes medicinal instruction seriously, demonstrating enthusiasm and practiced technique when teaching others 35 109 112.

In relationships, she combines teasing and calculated maneuvering with genuine loyalty. She uses requests for lessons to secure time with Chu Men, supports Ye Lingling's search for defensive equipment, and places herself between Chu Men and her grandfather during a dangerous confrontation 32 61 98.

Abilities & Skills

Jade Phosphor Snake

Her martial soul provides snake venom suited to controlling the battlefield. She follows the control-type path on Dugu Bo's advice, as he considers it comparatively safe for her 70.

• Battlefield control: Uses Jade Phosphor Snake venom as the foundation of her intended combat role 70.
• Martial soul possession: Manifests pale-green scales on her neck 98.
• Family resonance: Can identify Dugu Bo's presence among distant combatants through the special resonance between their family's martial souls 120.

Poison Resistance and Venom Backlash

Dugu Yan can normally control her venom with the ease of moving her own limbs, but she is not immune to poisoning. Her family's powerful venom also carries harmful side effects for its users 79 100.

• Pufferfish toxin triggers her own Jade Phosphor Snake venom to go berserk, causing severe pain, coldness, trembling, and collapse 35.
• Ordinary antidote tea worsens the episode. Ye Lingling's Nine-Heart Begonia can delay it but cannot neutralize it with her available Soul Power 35.
• Chu Men's Status Inversion calms the outbreak and increases her resistance enough to overcome the active toxicity 35.
• The underlying problem remains a concern afterward; Chu Men still considers her venom in need of proper regulation 100 103.

Martial Soul Fusion with Chu Men

Dugu Yan's Jade Phosphor Snake and Chu Men's Inversion Pen possess unusually high compatibility. Their fusion manifests as intertwined purple-and-jade Soul Power and a snake-patterned pen 74 98.

• Poison conversion: Draws lingering Jade Phosphor venom toward Chu Men and converts it into pure Soul Power 98.
• Recovery: Restores more than half of Chu Men's depleted strength within a few breaths during their confrontation with Dugu Bo 98.
• Efficiency: Reduces Soul Power consumption and increases conversion efficiency; the exact improvement remains unmeasured 98.
• Suppression: Enables the pen to open a gap in Dugu Bo's poison-based Soul Power shield 98.
• Limits: Dugu Bo judges their overall combined strength at the Soul King level and can forcibly dissolve the fusion by striking the pen 98 99.

Poison Arts and Medicinal Refining

Dugu Yan inherits medicinal and poison knowledge from Dugu Bo. Her expertise is substantial enough for her to teach Chu Men and the others 22 100 109.

• Discusses the properties of Soul-Bewitching Grass, Bone-Corroding Flower, and hallucinogenic Illusion Butterfly Powder 22.
• Teaches herb identification, processing, measurement, and the distinction between poisonous and medicinal applications 109.
• Demonstrates juice extraction and increasingly complicated refining techniques involving poisonous ingredients and venomous insects 112.
• Recognizes a rare Emerald Snake and prevents Liu Erlong from killing it 109.
• Gives Xiao Wu an antidote after identifying her condition as hallucinogenic poisoning 109.

Soul Tool Studies and Weapon Training

Dugu Yan seeks to combine her poison arts with Chu Men's Soul Tool technology, initially taking interest in devices that could spray poison mist or store prepared venom 22 23.

• Requests instruction in poison Soul-Guided Device creation and offers to help repair Soul Tools 23 62.
• Joins lessons arranged for herself, Ye Lingling, and Xiao Wu 66 106.
• Agrees to teach Chu Men alchemy in exchange for lessons in Soul Tool construction 100.
• Learns grenade use from Chu Men during Dugu Bo's test and attacks her grandfather under his guidance 96.
• No completed Soul Tool of her own is documented in the supplied chapters.

Equipment / Items

• Nine-Section Jade (“Little Nine”) — A highly venomous snake kept by Dugu Bo that Dugu Yan handles affectionately, carrying it in her sleeve and letting it coil around her wrist 21 109.
• Storage Soul Tool — Holds teaching materials and other possessions. She also owns a Soul Tool capable of storing living things 109 120.
• Recording Stones — Shows Dugu Bo recordings of Golden Snake Dancing Wildly and Liu Erlong's armored battle against Yu Zhentian. She purchases the latter recording at considerable expense from Heaven Dou Royal Academy's small black market 87.
• Alchemy tools — Uses a bronze mortar, jade pestle, ceramic furnace, sieves, measuring instruments, and labeled dried herbs for instruction 109.
• Jade Scale Detoxification Pill — Gives Chu Men a pill refined by Dugu Bo during their first outing 22.
• Poison-formation antidotes — Supplies specially made pills for entering Dugu Bo's protected herb garden. They should be held in the mouth and can be reused after leaving the formation 118.

History

Meeting Chu Men

Dugu Yan first approaches Chu Men after his lightning-device lecture at Blue Tyrant Academy. Interested in Golden Snake Dancing Wildly, she questions him directly and accompanies him through Heaven Dou City. Their conversation turns to poisons and Soul Tools, leading to a visit to his shop, a detoxification-pill gift, and lunch with Liu Erlong and Xiao Wu 20 21 22.

She secures his promise to teach her poison Soul Tool construction. Later, she brings Ye Lingling to him as a prospective student seeking defensive equipment and unsuccessfully invites him to teach at Heaven Dou Royal Academy 23 32.

Venom Outbreak and Growing Affection

While eating with Chu Men, Xiao Wu, and Ye Lingling, Dugu Yan competitively consumes pufferfish until its toxin triggers her own venom. Chu Men saves her using Status Inversion, and she advances to level twenty-seven. The rescue deepens her feelings for him 35.

She subsequently seeks more opportunities to study and work beside him, despite Liu Erlong's objections. During a visit to the shop, she directly declares that she likes him. Their growing intimacy leads to martial soul resonance, which Liu Erlong verifies as a highly compatible fusion 61 62 68 72 74.

Dugu Bo's Assessment

Dugu Yan tells her grandfather about the venom outbreak and Chu Men's rescue, praising his unusual martial soul. She later shows Dugu Bo recordings of Chu Men's lightning demonstration and the Fire Dragon Battle Armor to establish the value of his inventions 79 80 87 88.

When Dugu Bo visits Blue Tyrant Academy, she mediates the initial standoff and defends Chu Men during his questioning. Dugu Bo then subjects Chu Men and the three girls to a poison-filled combat test 93 94 95.

Dugu Yan learns to throw grenades during the confrontation, then returns after the group separates to stand beside Chu Men. Their fusion surprises Dugu Bo and convinces him that the relationship offers both exceptional compatibility and a way to counter her venom. He approves their choice and offers Chu Men the use of his name when facing trouble 96 97 98 99.

Alchemy Lessons and the Herb Gardens

After receiving Dugu Bo's approval, Dugu Yan and Chu Men agree to exchange alchemy and Soul Tool instruction. She begins teaching him and later hosts practical lessons at Dugu Manor, using its pharmacy, herbs, and refining equipment 100 108 109 112.

She proposes visiting the larger garden in Sunset Forest, whose route she knows from previous trips with her grandfather. She supplies antidotes for its poison formation and accompanies the group to the Ice and Fire Yin-Yang Well 113 118 120.

At the well, Chu Men asks to borrow her living-storage Soul Tool while considering how to protect or harvest the rare herbs without damaging them. Dugu Yan also identifies Dugu Bo among the fighters outside through family martial soul resonance; she explains that he had not known she was coming 120.

Relationships

• Dugu Bo — Grandfather, protector, and source of her poison-refining knowledge. She seeks his support for Chu Men but actively opposes him when his test becomes dangerous 79 80 98 100.
• Chu Men — Romantic partner, Soul Tool teacher, alchemy student, and martial soul fusion partner. He saves her from venom backlash and promises to remain by her side; their relationship receives Dugu Bo's approval 35 94 99 100.
• Ye Lingling — Best friend and academy dormmate. Dugu Yan teases her but also helps her approach Chu Men for defensive equipment and praises her medicinal-refining skill 32 42 110.
• Liu Erlong — Respected neighboring academy dean who becomes her romantic rival. Their competition over Chu Men coexists with educational cooperation: Liu Erlong verifies the fusion and invites Dugu Yan to consider transferring academies 61 67 74 100.
• Xiao Wu — Fellow student and playful rival for Chu Men's attention. Their early encounters are tense, but Dugu Yan later treats her poisoning with an antidote 31 108 109.
• Yu Tianheng — Classmate at Heaven Dou Royal Academy. She corrects Chu Men's claim that he is an elderly Blue Lightning Tyrant Dragon ancestor 22.

Notable Quotes

“Cultivation and all that, it's so annoying!” 21

“Chu Men, I like you.” 68

“Then it's settled. I'll teach you alchemy from now on, and you'll teach me how to make Soul Tools.” 100