Martial Dao Melting Furnace

Biodata

Feature	Value
Name	Martial Dao Melting Furnace
Alias(es)	武道熔炉 (original name)
Affiliation	Lu Lin (owner) 2
Occupation/Role	Cultivation aid, martial-technique deducer, and concealed storage artifact 2 144 250
Status	Active 250
First Appearance	Chapter 2

Power Progression

Stage / Realm / Level	Chapter	Notes
Initial state (later implied Level 1)	2	Awakens upon detecting an Inferior Spirit Stone; converts its spiritual energy into one month of cultivation time. Its initial inner space measures one chi in length, width, and height.
Level Two	11 19	Upgrade requirements were 100 jin of Copper Essence and three Low-grade Spirit Stones. The upgrade enables absorption of medium-grade spiritual energy and enlarges the inner space.
Level Three	86	Upgraded using 36 Mid-grade Spirit Stones, over 1,000 pounds of Mystic Gold, and three Tier 2 Monster Cores. Inner space expands to one zhang.
Level Four	190	Reaches Level Four after refining the Thunder Spirit’s main body. Inner space expands from one zhang to three zhang.
Higher cultivation-time system	199	After Lu Lin reaches the Martial Dao Golden Body Realm, ordinary cultivation time can no longer advance his cultivation; it converts into higher cultivation time at a 20:1 ratio.

Background / History

The furnace had existed within Lu Lin’s sea of consciousness since his transmigration, but remained inert for five days. It activated only when Lu Lin unearthed an Inferior Spirit Stone, identifying its spiritual energy and offering to exchange it for cultivation time. 2

Its initial functions allowed Lu Lin to convert spiritual energy into simulated periods of arduous cultivation, directly improving recorded martial techniques. The first exchange raised the Demonic Ape Blood Qi Art from the twenty-second to the twenty-eighth form after one month of simulated training. 2

As Lu Lin accumulated rare resources, the furnace underwent successive upgrades, expanding both the grades of energy it could process and its internal storage capacity. By Level Four, it could also respond to direct inquiries, open its lid at Lu Lin’s command, and retain the weakened source spirituality of the Thunder Spirit it had refined. 86 190 232

Appearance

The Martial Dao Melting Furnace resides in Lu Lin’s sea of consciousness. It is initially described as an exquisite, compact furnace hovering silently; after upgrades, it appears increasingly archaic, condensed, and profound. 2 19 86

• Its surface displays written prompts and a status panel for its owner. 2
• Its lid can open independently or in response to Lu Lin’s intent. 190 232
• During upgrades or major absorption events, it emits intense light and powerful suction. 86 190

Abilities & Skills

Spiritual Energy Conversion

The furnace absorbs spiritual energy from materials and converts it into cultivation time, allowing Lu Lin to experience the equivalent of long-term bitter cultivation. 2

• Inferior Spirit Stones can be converted into cultivation time; one Inferior Spirit Stone initially yielded one month. 2
• It can process energy from spirit stones, monster cores, magical artifacts, ores, Golden Cores, and other spiritually charged materials. 5 88 185 203
• A Golden Core can yield 10,000 years of cultivation time. 185
• Before upgrading to Level Two, it could not absorb medium-grade spiritual energy. 11
• Spiritual energy tainted by dense demonic aura yields reduced cultivation time. 159

Cultivation Enhancement

Cultivation time can be infused into martial arts, body-tempering methods, killing moves, technical manuals, and recorded movement techniques. 2 5 237

• It can record and enhance non-combat skills such as Mining Essentials. 5
• It can help Lu Lin comprehend a target’s “spirit” and develop Blood Aura Arts, provided his chosen direction is valid. 104 156
• It cannot directly record or use Immortal Dao cultivation methods. 99
• Incorrect cultivation directions cannot be resolved merely by expending more cultivation time. 104

Inheritance Extraction and Deduction

The furnace can identify and directly extract unknown Martial Dao inheritances in exchange for cultivation time. 144 147

• Extracting an Ancestral Martial Stele inheritance costs 300 years of cultivation time. 144 147
• It can register newly comprehended techniques, enabling Lu Lin to further cultivate them with stored time. 237
• It assists Lu Lin’s attempts to deduce methods beyond the Xiantian Realm and to fuse incompatible Blood Auras. 106

Inner Space

The furnace contains a concealed storage space accessible through Lu Lin’s thoughts. 2

• Initially, the space measures one chi in each dimension and can hold small items such as books, pills, and pebbles. 2 4
• At Level Three, it expands to one zhang and can accommodate monster corpses, weapons, artifacts, and materials. 86 88
• At Level Four, it expands to three zhang. 190
• It can safely store a skull containing Yellow Springs Corpse Water without leaking or contaminating Lu Lin during storage. 250

Autonomous Protection and Refinement

Although primarily governed by Lu Lin’s will, the furnace has shown increasingly autonomous behavior. 190 199

• It automatically concealed Lu Lin’s multiple Blood Auras by drawing them into itself when True Person Youxuan examined him. 141
• It previously protected Lu Lin from backlash caused by comprehending a Demon King-level Mysterious Cold Flood Dragon’s spirit. 190
• It forcibly absorbed and refined the Thunder Spirit’s main body when the spirit was about to explode. 190
• The weakened remnant of the Thunder Spirit’s source spirituality remains imprisoned within its inner space. 190 232

Martial Dao Scourge

Upon Lu Lin accumulating more than 10,000 years of cultivation time, the furnace unlocked the special martial skill Martial Dao Scourge. 159

• Consumes 1,000 years of ordinary cultivation time per use. 159
• Triples the power of a single attack. 159
• Each Scourge affects only one strike. 159
• After the transition to higher cultivation time, ordinary cultivation time remains usable for Martial Dao Scourge and Martial Essence. 199

Relationships

• Lu Lin — Owner and sole known user; the furnace has accompanied him since his transmigration and serves as the foundation of his cultivation progress. 2
• Thunder Spirit — Its main body was refined by the furnace, while its surviving source spirituality remains confined inside the furnace’s inner space. 190 232

Trivia

• The furnace’s first recorded exchange reduced an Inferior Spirit Stone to dull ash. 2
• Its storage ability is invisible and does not require spiritual power, unlike ordinary cultivator storage pouches. 11
• The furnace appears to prioritize its own upgrades over returning cultivation time when consuming exceptionally valuable materials. 190