Grandpa Lu

Biodata

Feature	Information
Name	Grandpa Lu (炉爷)
Alias(es)	Artifact Spirit of the Eight Trigrams Furnace
Species/Race	Artifact Spirit
Gender	Male
Affiliation	Eight Trigrams Furnace; Dao Sect lineage
Occupation/Role	Alchemy tutor, cultivation advisor, and protector to Xiao Yao
Status	Active
First Appearance	Chapter 5

Background

Grandpa Lu is the sentient artifact spirit residing within the Eight Trigrams Furnace, a treasure bestowed upon Xiao Yao by Taishang Laojun. He awakens after Xiao Yao establishes a cave dwelling and recognizes the Great Grade Heavenly Immortal Art, Innate Dao Body, and Refining Essence into Qi cultivation that mark Xiao Yao as a direct disciple of his “Ancestral Master.” By seniority, he instructs Xiao Yao to address him as “Grandpa Lu.” 5

Upon awakening, he tests Xiao Yao’s knowledge of alchemy and dismisses the Dou Qi Continent’s pill-refining standards as crude. He then takes responsibility for teaching Xiao Yao true immortal alchemy, beginning with the Human-Supplementing Immortal Pill. 5

Appearance

Grandpa Lu normally speaks from within the Eight Trigrams Furnace. When manifesting, he appears as a blurred but proud elderly face amid purple-gold light on the furnace’s body. 5

• Resides in an ancient, purple-gold Eight Trigrams Furnace.
• Has an aged, forceful voice.
• Can condense a vague elderly visage from his will. 5 47

Personality

Grandpa Lu is proud, sharp-tongued, and uncompromising about the standards of immortal alchemy. He ridicules even high-grade pills and renowned alchemists of the Dou Qi Continent, arguing that true alchemy follows the Heavenly Dao and harmonizes yin and yang rather than merely forcing medicinal properties together. 5

Despite his abrasive manner, he is deeply invested in Xiao Yao’s growth. He tempers Xiao Yao’s pride after the successful refinement of the Human-Supplementing Immortal Pill, provides immediate guidance during deadly tribulations and combat, and openly praises Xiao Yao when his comprehension improves. 8 32 33 47

He also displays a roguish and teasing side, particularly when discussing the side effects of Heavenly Flame refinement and Xiao Yao’s personal desires. 14 56

Abilities & Skills

Immortal Alchemy

Grandpa Lu possesses knowledge of the Dan Dao Origin Book and teaches a form of alchemy far beyond the Dou Qi Continent’s conventional pill refinement.

• Identifies flaws, impurities, and improper methods in local pills. 5
• Guides Xiao Yao through the formula and ingredient substitutions for the Human-Supplementing Immortal Pill. 5 6
• Assists in purifying and elevating inferior local materials, enabling Xiao Yao’s first refinement to reach seventh grade. 8
• Explains the principles behind Pill Lightning and the limitations imposed by the world’s dwindling Heaven and Earth Energy. 9

Spiritual Sense and Soul Pressure

Though only a fragment of a split soul, Grandpa Lu possesses exceptional soul power.

• His soul realm is stated to surpass Gu Yuan’s peak Dou Saint soul power and is identified as Emperor Realm Soul. 12
• Releases soul pressure powerful enough to disperse Gu Dao’s Dou Saint pressure and force him back. 12
• Scans surrounding terrain to locate medicinal herbs and the Magical Beasts guarding them. 6
• Detects the unusual aura within the Tou She Ancient God Jade and recognizes characteristics of multiple merged flames. 36

Protection and Defensive Imprints

Grandpa Lu can leave defensive marks to protect Xiao Yao’s allies.

• Leaves a divine-sense imprint at the Xiao Family capable of forming a barrier that two Dou Ancestors cannot break. 13 29
• Leaves a protective imprint on Xiao Yi Xian capable of withstanding attacks from Dou Venerate experts. 21

Combat and Cultivation Guidance

Grandpa Lu provides real-time instruction during Xiao Yao’s most dangerous encounters.

• Warns Xiao Yao of spatial distortions during his battle against the Ninth Heavenly Venerate’s clone. 32
• Helps Xiao Yao comprehend the natural circulation of soul power and Immortal Family Mana while forming the full-power Carefree Seal. 33
• Directs Xiao Yao to use the Eight-Nine Arcane Arts and divine abilities to resolve the Yin Fire Tribulation rather than resisting it through brute force. 47
• Explains the dangers of using Samadhi True Fire before gaining the fire spirit’s recognition. 5

Relationships

• Xiao Yao — Mentor, alchemy instructor, advisor, and protector. Grandpa Lu recognizes him as a direct disciple of Taishang Laojun and guides his alchemy, combat, and immortal cultivation. 5 8 32 47
• Taishang Laojun — Regarded by Grandpa Lu as “Ancestral Master.” The Eight Trigrams Furnace containing Grandpa Lu was bestowed upon Xiao Yao by Laojun. 3 5
• Samadhi True Spirit — Fellow spiritual companion to Xiao Yao; both express pride in Xiao Yao after he absorbs the Heavenly Flames and reaches the Dou Venerate realm. 65 86
• Xiao Yi Xian — Protected through a defensive imprint left by Grandpa Lu at Xiao Yao’s request. 21
• Xiao Family — Guarded through Grandpa Lu’s divine-sense imprint after Xiao Yao provides the family with resources. 13 29

Story Role

Human-Supplementing Immortal Pill

Grandpa Lu awakens and begins Xiao Yao’s formal training in immortal alchemy. He provides the formula for the Human-Supplementing Immortal Pill, identifies the required ingredients, and oversees Xiao Yao’s first pill refinement. 5 6 7

Pill Lightning and the Immortal Path

After Xiao Yao’s refinement attracts Pill Lightning, Grandpa Lu prevents him from becoming arrogant by revealing his own intervention in elevating the ingredients. He later explains the realms of immortal cultivation, the Three Calamities, and the role of Heavenly Flames in overcoming Yin Fire. 8 14

Defense of Wutan City

Grandpa Lu’s protective barrier prevents the battle between Xiao Yao and the Ninth Heavenly Venerate’s clone from destroying Wutan City. During the fight, he also alerts Xiao Yao to concealed spatial attacks. 32

Yin Fire Tribulation

When Xiao Yao faces the Yin Fire Tribulation, Grandpa Lu gives crucial instructions on using the Eight-Nine Arcane Arts, divine abilities, and the Eight Trigrams Furnace to transform the tribulation into a refinement of body, mana, and spirit. 47

Notable Quotes

“Boy, do you know what true alchemy is? It is following the Heavenly Dao and harmonizing yin and yang!” 5

“Right now, you've only just set one foot through the door of true alchemy!” 8

“Yin Fire is a tribulation of the Great Dao, not something that can be resisted by brute force!” 47