Demonfire Blade

Biodata

Feature	Value
Name	Demonfire Blade
Original Name	魔火刀
Type	Weapon-type Martial Soul; Lu Mingzi’s First Martial Soul 1 4
Wielder	Lu Mingzi 1
Paired Martial Soul	Demonic Angel, awakened alongside it as Twin Martial Souls 1
Combat Role	Power Attack System; combines blade strikes, fire, poison, and defensive Soul Skills 9 12
First Appearance	Chapter 1 1

Power Progression

The blade’s Soul Rings develop through absorption, fusion, and enhancement using Lu Mingzi’s Deep Blue system 1 5 6.

Stage / Realm / Level	Chapter	Notes
Martial Soul awakening	1	Appears as a dazzling blade wreathed in black flame when Lu Mingzi awakens his Twin Martial Souls.
First Soul Ring: 401 years	1	Obtained from a Mandala Snake supplied by Qian Renxue; initially carries Level 4 Snake Venom.
First Soul Ring: 420 years	1	Fused with a 420-year Flame Lion ring. Deep Blue names the combined source Flame Venom Lion, granting Level 4 Fire Venom and strengthening Void Spirit Slash.
First Soul Ring: 423 years	2	Incorporates another Mandala Snake ring. Void Spirit Slash gains Level 4 Fire Poison and Level 4 poison-gas emission, with poison neutralization at will.
Second Soul Ring: thousand-year	5 6	Absorbed from a roughly 1,900-year Heavenflame Tiger, granting Raging Blade Gale. Deep Blue’s Enhance option becomes available.
First Soul Ring: 523 years	6	Enhanced using two Soul Blood Units; Fire Poison and Poison Gas Leakage rise to Level 5.
Second Soul Ring: 2,290 years	9	The displayed age rises from 1,290 to 2,290 years at a cost of ten Soul Blood Units. Raging Fire advances to Level 2.
First Soul Ring: 999 years	9	Reached during six years of training; Fire Poison and Poison Gas Leakage reach Level 9.
Second Soul Ring: 9,003 years	9	Reached during the same training period; Raging Blade Gale gains Level 9 Raging Fire.
Third Soul Ring: 5,300 years	9 11	Obtained from a Lord of the Earth. Grants Method of Bathing the Mystic Body in Fire, initially with Level 5 Overlord Body.
Third Soul Ring: 6,300 years	11	The displayed enhancement raises Overlord Body to Level 6 and severely injures Lu Mingzi.
Third Soul Ring: 7,300 years	11	The chapter summary reports this as the final age after further enhancement.
Third Soul Ring: 8,300 years	18	Its displayed defensive effect reaches Level 8 Unyielding Body.
Third Soul Skill: added Shockwave	19	Deduction incorporates the Titan Giant Ape’s compatible physical-power traits for five Soul Blood Units. The ring remains 8,300 years old, with Level 8 Overlord Body and Level 8 Shockwave.

Appearance

• Black-flame coating: Appears surrounded by black flames from its awakening onward 1 6.
• Massive blade: Described as a great blade; fiery patterns appear across it after the Second Soul Ring is absorbed 6.
• Expanding manifestation: Can emerge from Lu Mingzi’s palm and rapidly enlarge before he grips it 12.
• Poisonous fumes: Its enhanced First Soul Skill releases thick, dark-green mist from the blade and its tip 2 11 12.

Abilities & Skills

Void Spirit Slash

The First Soul Skill delivers a blade strike carrying fire and venom, later supplemented by poisonous gas 1 2.

• Cuts through Luo Sanpao’s dust-filled attack, forcing Yu Xiaogang and Tang San to retreat 2.
• Breaks Dai Mubai’s White Tiger Protection Barrier; the accompanying poison gas knocks him unconscious 8.
• Sends fire and poison along Tang San’s Blue Silver Grass after cutting its vines 11.
• Can split the ground, leaving black flames burning in the resulting fissure 11.
• Allows Lu Mingzi to neutralize its poison at will 2.

Raging Blade Gale

The Second Soul Skill gathers energy along the blade before releasing flaming blade arcs in multiple directions 6.

• Initially produces roughly five flame blades under ordinary conditions; its attack on Qian Renxue releases dozens, prompting her to suspect Martial Soul resonance 6 9.
• Kills a roughly 2,250-year Mount Tai Berserk Ape with one use 6.
• Later produces eight fiery-red blades during the test against Snake Lance and Pufferfish Douluo 12.
• Can launch a single fiery arc at a fleeing target, as demonstrated against a five-thousand-year giant bird 19.
• Has a heavy Soul Power cost: early use causes Lu Mingzi to collapse, and Qian Daoliu’s test places his limit at about three consecutive strikes 6 7.

Mystic Body, Fire-Bathed Method

The Third Soul Skill surrounds Lu Mingzi with fierce flames, increasing physical strength and defense. It is also named Method of Bathing the Mystic Body in Fire 11 12.

• Forms a flame barrier capable of resisting Snake Lance’s spear and Pufferfish’s fist while both suppress their strength 12.
• Strengthens the body and provides substantial resistance to control effects 18.
• Gains Shockwave through Deduction; a blade impact then releases enough force to send a five-thousand-year giant bird flying 19.

Demonic Qi Enhancement

Controlled Demonic Qi merges with flames to form black fire and increases the Demonfire Blade’s power severalfold 16.

• Combines with poison and fire in a slash that wounds a roughly nine-thousand-year Titan Giant Ape; poison and Demonic Qi continue eating into the injury 18 19.
• Initially forces Lu Mingzi to limit his combat output because using full strength can reactivate suppressed Demonic Qi 11.
• Becomes freely controllable after Demonic Thought hatches and assists him 16 17.
• Qian Renxue describes the blade’s Demonic Qi as capable of seizing the mind, though the supplied passages do not show a distinct mind-control technique 4.

Deep Blue Modification

Deep Blue changes the blade’s Soul Rings rather than merely adding new ones 1 2 19.

• Fusion: Combines Soul Beast attributes into an existing ring; the strongest source ring determines the resulting age 1.
• Enhancement: Raises ring age and effect levels using Soul Blood Units 6 9.
• Deduction: Adds compatible effects from another Soul Ring, as with the Titan Giant Ape’s Shockwave 19.
• Physical limit: Modification drains Lu Mingzi’s energy and can tear his skin and flesh; an insufficiently strong body risks bursting apart 9 11.
• Unresolved thresholds: Lu Mingzi cannot further enhance his 999-year First Soul Ring or his 9,003-year Second Soul Ring through the available options at that point 11.

History

Lu Mingzi awakens the Demonfire Blade at twelve, alongside the Demonic Angel. He initially develops its First Soul Ring in the Soul Hunting Forest, using Deep Blue to combine snake venom with the Flame Lion’s fire before adding a second Mandala Snake’s poison-gas effect 1 2.

After becoming Qian Renxue’s disciple, he follows her recommendation to seek a fire-attribute Heavenflame Tiger. Its thousand-year ring settles around the blade during absorption, granting Raging Blade Gale. He subsequently spends six years hunting Soul Beasts and enhancing his rings near the Star Dou Great Forest 4 5 9.

Once Demonic Thought helps him control Demonic Qi, Lu Mingzi begins deliberately strengthening the blade with it. His later Titan Giant Ape hunt supplies both Soul Blood and the compatible ring traits used to add Shockwave to his Third Soul Skill 16 17 18 19.

Notable Battles

Opponent	Contribution	Chapter
Yu Xiaogang and Tang San	Void Spirit Slash breaks through their attempted ambush; Luo Sanpao intercepts the strike while they flee.	2
Dai Mubai	Cuts apart White Tiger Fierce Light Wave, shatters his protection barrier, and delivers the poison that ends the match.	8
Tang San and Xiao Wu	Severs Blue Silver Grass and pressures Tang San with a ground-splitting slash before the pair retreat.	11
Snake Lance and Pufferfish Douluo	Its fire blades force both opponents to restore their suppressed strength; Pufferfish concedes the test.	12
Titan Giant Ape	Fire, poison, and Demonic Qi wound the ape; subsequent Soul Skills finish it.	18

Trivia

• Second-ring age discrepancy: The Heavenflame Tiger and its absorbed ring are described as roughly 1,900 years old, but Deep Blue later displays the Second Soul Skill at 1,290 years before enhancement to 2,290 5 6 9.
• Alternate wording: Chapter 13 calls Lu Mingzi’s manifested Martial Soul the Demonic Fire Path, whereas the surrounding chapters identify it as the Demonfire Blade 12 13 16.