Xiao Yi Xian

Biodata

Feature	Value
Name	Xiao Yi Xian (小医仙)
Alias(es)	Little Fairy Doctor 37
Gender	Female
Affiliation	Myriad Medicine Pavilion, Qingshan Town 13 32 125
Occupation/Role	Physician, Poison Master, and manager of Myriad Medicine Pavilion 14 32 125 135
Constitution	Body of Calamitous Poison 14 15
Cultivation	Six-Star Great Dou Master in the main timeline; Dou Venerable in the separate extra-chapter timeline 192 304
First Appearance	Mentioned in Gu Fengchen’s thoughts in Chapter 2; appears in person in Chapter 13 2 13

Power Progression

Main Timeline

Stage / Realm / Level	Chapter	Notes
Fifth Stage Dou Qi	20	Her cultivation immediately before Gu Fengchen’s supervised poison treatment.
Seventh Stage Dou Qi	20	Advances after consuming a potent blue herb while Gu Fengchen absorbs the excess toxins. She remains conscious despite a poison dose that would previously have overwhelmed her.
Dou Zhe	36	Breaks through while absorbing the Tier 2 Beast Spider’s Magic Core, with Gu Fengchen removing the harmful excess energy.
Three-Star Dou Shi	125	Her confirmed realm when Gu Fengchen returns to Qingshan Town. A Tier 5 poison-attribute Magic Core is identified as a possible resource for further advancement.
Five-Star Dou Shi	126	Reaches this level after dual cultivation with Gu Fengchen.
One-Star Great Dou Master	140	Advances through continued dual cultivation with Gu Fengchen.
Five-Star Great Dou Master	190	Rapid growth is attributed to her constitution and the Taotie Seal’s assistance. Some potent poisons still require Gu Fengchen’s supervision.
Six-Star Great Dou Master	192	Advances after Gu Fengchen suppresses a poison-body eruption. Her Poison Dou Qi becomes purer and easier to control. The chapter describes the surge as starting from Three-Star Great Dou Master, despite the Five-Star level reported earlier.

Separate Extra-Chapter Timeline

Stage / Realm / Level	Chapter	Notes
Dou Venerable	304	Has reached this realm after her poison constitution is brought under control. The extra-chapter sequence is explicitly unrelated to the main timeline 300 304.

Background / History

Physician of Qingshan Town

Xiao Yi Xian comes from a poor background without powerful family support. Her medical knowledge gives her a livelihood at Myriad Medicine Pavilion, where she treats injured mercenaries and dispenses medicine. Her reputation combines skilled treatment, kindness, and beauty; even the town’s rough mercenaries queue obediently to see her 13 14 45 46.

Before meeting Gu Fengchen, she accidentally consumes a highly toxic poison without suffering harm and discovers an increasing dependence on poison. She recognizes that her body is unusual but does not know the constitution’s name. Fear of harming others, together with the Jia Ma Empire’s hostility toward Poison Masters, leads her to conceal it 15.

Alliance with Gu Fengchen

Gu Fengchen deliberately seeks her out because he recognizes the potential of the Body of Calamitous Poison. When he names her constitution and offers assistance, she initially warns him to stay away. She agrees to a small test only after ensuring she has medicine available to treat him if necessary 14 15 16.

The test proves that his Taotie Seal can absorb her excess poison while strengthening him. A subsequent treatment raises her cultivation from the fifth to the seventh stage of Dou Qi. She also guides him to a treasure cave she had discovered but lacked the strength to explore, receiving medicinal herbs and the Seven-Colored Poison Classic from their expedition 16 20 26 27.

Managing Myriad Medicine Pavilion

After Gu Fengchen becomes the pavilion’s owner, Xiao Yi Xian helps manage its stores and daily affairs. Their shared dangers leave her willing to trust him without reservation. During his absences, she assesses prospective mercenaries and recruits Kagang’s small group to support future herb-gathering expeditions 32 124 125.

The pavilion expands through Gu Fengchen’s protection and Yao Chen’s medicinal pills. Xiao Yi Xian tracks its sales, identifies recovery and healing medicines as its strongest sellers, and reports a proposed He Family attack. Although the family abandons the plan after learning of Gu Fengchen’s strength, she promises to confront them herself once she becomes stronger 189 190.

Poison-Body Eruption

After confronting Xiao Qing over her interest in Gu Fengchen, Xiao Yi Xian collapses as black energy emerges from her body. Gu Fengchen discovers a poison-body eruption, absorbs the excess toxins, and helps her reach Six-Star Great Dou Master. She apologizes for taking unexpectedly potent poison without him and agrees not to repeat the mistake 191 192.

Extra Chapters

In the separate extra-chapter storyline, Xiao Yi Xian and Gu Fengchen share a thatched cottage in the Magic Beast Mountain Range. She comforts him after an exhausting encounter with a magical beast and expresses complete confidence that her constitution will remain safe with him present. This storyline later places her at Dou Venerable 300 301 304.

Appearance

Xiao Yi Xian is introduced with a fresh, refined beauty compared to a lotus flower rather than an overwhelmingly glamorous appearance 13.

• Hair and eyes: Long dark hair, clear bright eyes, and thick eyelashes 19 32.
• Build: A notably slender waist, initially emphasized by a green sash 13.
• Clothing: Appears in white dresses, an elaborate black gown, and a pale yellow long dress; she also wears an ebony hairpin 13 32 192 193.
• Scent: Frequently carries a medicinal aroma 40 301.
• Constitution marking: The Body of Calamitous Poison produces a Seven-Colored Hidden Line on the lower abdomen, which lengthens as toxins accumulate 15.

Personality

Xiao Yi Xian is compassionate and responsible, treating patients patiently while fearing the harm her constitution could cause. Her first response to Gu Fengchen’s offer is to warn that approaching her may kill him; even when she agrees to a test, she tells him not to force himself 14 15 16.

She is guarded rather than unquestioningly trusting. Before accepting treatment, she directly asks why a stranger would help her. With people close to her, however, she becomes accommodating and affectionate, patiently explaining medicinal herbs to Gu Fengchen and gradually allowing herself to depend on him 19 35 141.

Her affection also has a jealous, sharp-tongued side. Xue Mei’s familiar manner toward Gu Fengchen irritates her, and she later drives Xiao Qing away during a confrontation. Her protectiveness can become ruthless when the pavilion is threatened, as shown by her promise to wipe out the He Family 40 190 191.

Abilities & Skills

Body of Calamitous Poison

Her constitution converts consumed poison into specialized Poison Dou Qi, allowing unusually rapid cultivation 2 15.

• Poison-driven growth: Stronger poisons offer powerful cultivation resources but exert a correspondingly stronger attraction on her 16.
• Magic Core absorption: Can directly absorb energy from suitable Magic Cores, including the poisonous Beast Spider’s core 26 36.
• Resistance, not absolute immunity: Excessively potent poison can still render her unconscious and cause toxins to leak onto others 19.
• Accumulation hazard: Uncontrolled toxins can erupt catastrophically. Successive eruptions become more severe and threaten both her lifespan and surrounding life 15 16.
• Visible warning: The Seven-Colored Hidden Line extends toward the heart as toxin concentration rises; reaching the heart corresponds to the constitution’s strongest and most painful state 15.

Poison Dou Qi

Xiao Yi Xian’s poison allows her to threaten opponents above her cultivation realm 190.

• At Great Dou Master, her poisonous aura makes even Fourth Tier magical beasts avoid her unless they possess a poison attribute 190.
• Dou Spirits and even Dou Wangs can suffer severely if they cannot neutralize her toxins; this is not presented as an unconditional victory over those realms 190.
• Her Six-Star Great Dou Master breakthrough produces purer, more domineering Poison Dou Qi that she can manipulate with relative ease 192.
• Gu Fengchen’s absorbed Poison Dou Qi is explicitly inferior to that produced by her constitution 244.

Medical and Herbal Knowledge

She is an accomplished physician with extensive knowledge of medicinal theory 14 35 160.

• Treats wounded mercenaries and prepares medicine at Myriad Medicine Pavilion 13 14.
• Identifies herbs, explains their properties and habitats, and describes the effects of consuming them 35.
• Studies poisons and concealed weapons alongside continuing to heal patients 135.

Dual Cultivation with Gu Fengchen

Their cultivation partnership uses her poison consumption and his toxin absorption to benefit both participants 16.

• Gu Fengchen removes excess toxins through physical contact with the Taotie Seal, allowing her to use resources that would otherwise be dangerous 14 20 36.
• The extracted poison strengthens him and eventually allows him to wield poison-attribute Dou Qi 16 244 355.
• The arrangement controls toxin buildup rather than making reckless poison consumption safe; her later unsupervised dose still triggers an eruption 190 192.

Pavilion Management

She handles recruitment, herb-gathering arrangements, and sales information while Gu Fengchen is away 124 125 190.

• Selects Kagang’s group based on their character and the pavilion’s need for escorts 125.
• Organizes information on profitable medicine categories to guide pill production 190.
• Keeps Gu Fengchen informed about business expansion and hostile neighboring forces 189.

Equipment / Items

• Seven-Colored Poison Classic — A multicolored scroll recording poison-concoction methods, given to her by Gu Fengchen from the cave’s treasures 27.
• Black Demon Bear Soft Armor — Close-fitting, breathable armor made from a Fourth Tier magical beast’s hide; gifted to compensate for her weak physical defense 45.
• Black ring containing Yao Chen — Entrusted to her so that Yao Chen can guide her cultivation and watch for problems with her constitution 130.
• Medicinal herbs and poisonous Magic Cores — Supplies gathered during expeditions and used for treatment or cultivation 26 35 36.
• Gu Technique manuals — Gu Fengchen introduces four manuals for her consideration. Poison Gu is identified as particularly suitable, while he warns her to wait for his return before cultivating Corpse Gu; mastery is not confirmed 207 208.

Relationships

• Gu Fengchen / Gu Feng — Protector, cultivation partner, and romantic interest. His acceptance of her constitution earns her trust, and their bond develops through treatment, shared danger, and affectionate domestic exchanges 16 32 46 141 193.
• Yao Chen — Cultivation adviser housed in the ring Gu Fengchen gives her; also assigned to monitor her constitution 130.
• Mr. Yao — Earlier owner of Myriad Medicine Pavilion. Gu Fengchen uses his family’s implied backing to warn him against mistreating her 18 19.
• Kagang and Ling’er — Members of the small mercenary group she accepts into the pavilion to support its work 124 125.
• Xue Mei — A source of romantic jealousy because of her familiarity with Gu Fengchen 40 46.
• Xiao Qing — Romantic rival whom she confronts and drives away from the pavilion 191.
• Mu Li — Unwanted admirer whose interference leads to conflict with Gu Fengchen 16 43.
• He Family — Enemy faction that considers massacring the pavilion; Xiao Yi Xian vows to retaliate when strong enough 189 190.

Notable Quotes

“You'd better stay away from me. You will die. I don't want to kill anyone.” 15

“Once my strength rises, I'll personally wipe out the He Family.” 190

“With you here, nothing will happen.” 300

Trivia

• Despite her expertise in medicine, her cooking remains poor; Gu Fengchen praises it anyway to encourage her 193.
• Gu Fengchen’s claim that she belongs to his family is a protective cover story, not confirmation that she is a Gu Clan member 19.
• In the main timeline, she calls Gu Fengchen an eleven-year-old brat. The unrelated extra chapters instead describe her as younger than him 32 300.