While the player is in Battle Through the Heavens, the system is in The Great Ruler.

Chapter 154 Another Simulation, Journey to the Martial Realm, Five Treasures Spiritual Canon!
Boom!

A thunderclap suddenly boomed in the sky, followed by a bolt of black lightning as thick as a thigh, which, like a giant black python, tore through the dark clouds and hurtled toward Lu Yu like lightning.

In a flash, Lu Yu's mind raced, and the golden pagoda fire around him surged violently, instantly condensing into a layer of dazzling golden flame armor on his body.

Then, he thrust out his right palm, and a golden palm print, condensed to the extreme, burst forth from his palm, fiercely meeting the black lightning!
boom!
The black lightning and the golden palm print collided violently in mid-air, unleashing a deafening roar. A terrifying shockwave instantly swept outwards, causing visible ripples to appear in the surrounding space.

"Oh!"

A deep, muffled explosion followed immediately, the sound seeming to strike directly into everyone's hearts, causing the hearts of everyone on the viewing platform to pound uncontrollably.

Several alchemists with weaker cultivation levels turned pale and swayed, nearly falling over.

"Chichi..."

The palm print collided with the lightning. Under the scorching heat of the Floating Pagoda Fire, the black lightning shattered inch by inch, eventually transforming into a sky full of black lightning that dissipated between heaven and earth.

However, before everyone could breathe a sigh of relief, another deafening thunderclap boomed in the sky! A black bolt of lightning, as thick as a bucket, tore through the clouds like an angry dragon and struck down directly at Lu Yu!

"Well done!"

Lu Yu let out a long laugh, and the golden pagoda flames around him surged violently, condensing into a nine-story pagoda phantom in front of him. Black lightning slammed into the pagoda, unleashing a deafening roar that shook the surrounding space!
"Boom! Boom! Boom!"

Three bolts of black lightning struck in succession, but the illusory image of the Floating Pagoda remained unmoved. Lu Yu formed hand seals, and the Floating Pagoda Fire transformed into countless golden lotuses, shattering the incoming lightning bolts one by one, turning them into countless black rays of light.

Just as the fourth bolt of lightning struck, he suddenly withdrew his defenses, and a ball of dark black flame suddenly surged from his palm!
With two fingers joined together, a black light condensed at the fingertips and suddenly shot out!

"Netherworld Demon, go!"

The black flames surged against the wind, instantly transforming into a ferocious giant python. It opened its mouth and inhaled, instantly drawing in the surrounding black lightning. The flames around it rapidly increased, then emitted a piercing thunderous sound, directly meeting the black lightning!
"A second strange fire!"

On the viewing platform, the crowd gasped in disbelief.

Two different flames cannot coexist; this is common knowledge in the Dou Qi Continent.

How could this person be an exception?

"Roar!"

The black python formed from the Netherworld Demonic Fire roared to the sky and swallowed the lightning bolt whole with its gaping maw! The flame python's body immediately swirled with black light and emitted a joyful hiss.

"Boom!"

The thunderclouds in the sky seemed to be enraged by this action. They churned wildly, and in the blink of an eye, a bolt of silver-black lightning as thick as a bucket condensed and struck down from the clouds with a destructive aura.

The lightning, solid as a physical object, vaguely transformed into the form of a menacing thunder dragon, causing ripples to spread through the space wherever it passed.

"Crack!"

As the thunder dragon plummeted, the surrounding space could not withstand the terrifying pressure and began to shatter inch by inch, turning into nothingness!
"Roar!"

Faced with this earth-shattering attack, the giant python formed from the Netherworld Heart Demon Fire did not retreat. Instead, it raised its head and let out a long roar full of fighting spirit!

The howl carried a hint of longing, as if a hungry beast had spotted its long-awaited prey.

Immediately, it twisted its body and bravely faced the lightning, colliding with the silver-black lightning bolt in the horrified gazes of the crowd!
"boom!"

The moment the two collided, a dazzling burst of lightning erupted between heaven and earth, the blinding light forcing everyone to close their eyes.

Only the Thunder Venerable's eyes gleamed with silver light as he stared intently at the center of the collision. His brow furrowed, he muttered to himself, "A black lightning-attribute strange fire… possessing both the characteristics of flame and the power of thunder… This strange fire doesn't seem like the Nine Dragons Thunderfire of Burning Flame Valley. Just who is this person…?"

"Click——"

A few breaths later, the dazzling light dissipated, accompanied by a crisp cracking sound. All the scales on the giant python's body peeled off, replaced by an even more slender body!

The black fire python was noticeably smaller than before, but the aura emanating from it was even stronger, especially its eyes, which seemed more lively.

Then, the Netherworld Demon Flame glanced at the still-lingering thunder in the sky and saw that the thick thunderclouds had begun to dissipate. A look of disappointment appeared in its eyes. With a flick of its tail, it transformed into a black light and entered Lu Yu's body.

"boom!"

The Netherworld Demonic Flame surged into Lu Yu's body. Before he could react, he felt a surge of immense energy coursing through his entire being. Countless dazzling bolts of lightning exploded around him, and every bone crackled under the tempering power of the lightning.

This unprecedented feeling made Lu Yu tremble all over—not pain, but an indescribable pleasure!

"Crack!"

With a crisp cracking sound, an invisible bottleneck within his body was instantly broken through. An aura several times stronger than before erupted from his body, instantly sweeping across the entire plaza.

"boom!"

As the immense energy emanating from Lu Yu's body swept outwards, the entire viewing platform trembled violently. The alchemists with weaker cultivation turned pale, staggered backwards, and some were even knocked to the ground by the oppressive force.

"This...how is this possible?!"

Master Bai's aged face was filled with horror, his old eyes wide open, and he said in a trembling voice, "He actually broke through on the spot under the tempering of the pill lightning?!"

With a flick of his sleeve, Lei Zunzhe conjured a silver barrier that instantly enveloped the viewing platform, protecting everyone. His gaze was fixed intently on the figure in the center of the arena, his eyes filled with disbelief: "An eight-star Dou Zong… and his aura is so solid, he doesn't seem like someone who just broke through…"

Feng Qing'er's beautiful purplish-brown eyes gleamed with a strange light, her red lips parted slightly but no sound came out. She clearly sensed that the aura emanating from Lu Yu at this moment was no less than that of the elders in the clan who were at the Dou Zun realm!

"This guy……"

Zi Yan had already stopped chewing on the candied fruit, her purple eyes filled with excitement, and she said expectantly, "His cultivation level is the same as mine now, I really want to fight him..."

The Fairy Doctor gently covered her lips with her delicate hand, a relieved smile in her eyes. To her, Lu Yu's safety was enough.

At that moment, Lu Yu slowly opened his eyes, a flash of black lightning appearing briefly within them. Feeling the surging power within him, a satisfied smile curved his lips.

To his even greater surprise, the Netherworld Demonic Flame within his dantian had advanced further. The originally python-shaped flame had become even more condensed, with clearly discernible arcs of lightning leaping across its body, and fine silver lightning patterns dancing on each scale.

Most astonishingly, the spirituality of this Netherworld Demonic Flame seemed to have greatly increased. Within the leaping flames, there was a faint trace of the vitality possessed by a real living being, as if it were nurturing some kind of life essence...

"roar~"

With a dragon's roar that only Lu Yu could hear, the Netherworld Demonic Flame danced merrily through his meridians. Wherever it passed, the remaining lightning power was completely absorbed, and then it transformed into a black light that swept into the Floating Pagoda.

Lei Zun Zhe removed the barrier and flashed to Lu Yu's side. He looked at the young man with a complex expression, and finally sighed, "Master Lu's actions today have truly broadened my horizons. Not only did you successfully refine a peak seventh-grade pill, but you also broke through your cultivation level by using pill lightning... Such methods are unprecedented in my life!"

Lu Yu smiled slightly, cupped his hands and said, "Senior, you flatter me. If it weren't for the unique environment of Leishan, I would not have had this opportunity."

As he spoke, he flipped his palm, and a silver-black pill slowly appeared. The surface of the pill was covered with lightning patterns, and a miniature dragon could be vaguely seen swimming within it, emitting a chilling energy fluctuation.

"Lei Shidan, I have successfully completed my mission."

……

Soon after,

Inside the main hall of Fenglei Pavilion,
A group of alchemists surrounded Lu Yu, asking repeatedly, "Master Lu, what was that alchemy technique just now..."

"Master Lu, how did you manage to have two different kinds of flames coexisting..."

"I have a question that I do not understand, and I hope the master can enlighten me..."

Amidst the clamor of questions, Venerable Lei's brows furrowed suddenly, and a cold shout echoed throughout the hall: "Silence!"

The oppressive aura of a Dou Zun level instantly enveloped the entire area, and everyone immediately fell silent, not daring to utter a sound.

"Master Lu just refined a top-grade seventh-rank pill, which consumed a lot of energy. He needs to rest and recover."

Lei Zunzhe's sharp gaze swept over the crowd, and he sternly rebuked them: "As for the matter of the coexistence of two flames, I hope you will keep your mouths shut. Anyone who leaks this information will be severely punished!"

After saying that, he turned to Lu Yu and said solemnly, "Master, please rest assured, Fenglei Pavilion will keep this matter a secret."

Lu Yu nodded calmly, but he had other plans in mind.

No secrets stay hidden forever. Although Venerable Lei made such a promise, the news was bound to leak out.

However, with his current strength, ordinary Dou Zun are no longer a threat. You must know that his Floating Pagoda has been upgraded to a top-grade spiritual artifact. With this item concealing his aura, not to mention Lei Zun, even a peak Dou Zun expert would find it difficult to detect the strange fire hidden within.

Only a powerful expert at the Dou Sheng level, or someone with a Heavenly Realm soul, could perceive even a fraction of it.

If the Netherworld Heart Demon Fire hadn't actively sought to devour the Pill Lightning, he would never have so easily exposed this fire.

"Once this matter is settled, I still need to go to the Pill Tower to obtain the certification of a seventh-grade advanced alchemist. Having an official identity from the Pill Tower will make things much easier."

Lu Yu pondered to himself. A moment later, after all the alchemists in the hall had left, Venerable Lei solemnly raised his hand and waved. A flash of silver light appeared, and a token engraved with wind and thunder patterns and a brocade box made of cold jade appeared in mid-air at the same time.

"This jade box contains the Snow Bone Ginseng that was promised earlier."

With a light tap of his fingertip, the jade box slowly floated toward Lu Yu. He continued to explain, "As for this Eastern Pavilion Token, you can choose any three treasures from my Wind and Thunder Pavilion's treasury with it."

He paused, his tone growing increasingly solemn: "Besides, I owe you a favor for refining the Thunder Origin Pill today, Master. If you ever need anything in the future, just send someone with this token to my Wind and Thunder Pavilion, and I will personally come to your aid."

Lu Yu reached out and took the two items. When his fingertips touched the jade box, he felt a bone-chilling coldness, clearly a cold jade container specially prepared to preserve the Snow Bone Ginseng. The silver token felt heavy in his hand, and it possessed a profound aura that originated from the same source as Lei Zunzhe.

"Having obtained this Thunder Origin Pill, I will soon go into seclusion to break through my bottleneck."

Lei Zun Zhe's expression was solemn. He cupped his hands and said, "If Master wishes to go to the Treasure Pavilion, Qing'er can lead the way. As the chief disciple of the East Pavilion, she knows the treasures in the vault like the back of her hand."

Lu Yu put the two items into his storage ring, clasped his hands in a fist and smiled, "Then I wish you a successful retreat and a smooth breakthrough."

……

Soon after, a disciple of the Wind and Thunder Pavilion respectfully led Lu Yu to a secluded cultivation room in the East Pavilion.

Pushing open the heavy stone door, the interior was simply furnished yet exquisitely decorated. The walls were inlaid with azure spirit stones that could gather the energy of heaven and earth, and the floor was engraved with some kind of fire-attribute array, with strands of pure fire-attribute energy slowly flowing through the room.

"Master, please rest here. If you need anything, just ring the silver bell by the door."

The disciple bowed and withdrew, gently closing the stone door behind him.

Lu Yu sat cross-legged on the futon in the center of the quiet room. He first took out a Soul Nourishing Pill and swallowed it. Then, he formed a hand seal and his aura gradually stabilized.

"The exposure of the Netherworld Demon Flame is both a good thing and a bad thing..."

"The benefit is that I now know that the Netherworld Heart Demon Fire can devour Pill Lightning to advance its level, and even enhance its spirituality... This is an unexpected surprise."

"The downside is that it exposes two different kinds of strange fire, but strange fire is something that will be exposed sooner or later... With my current strength, I don't need to worry too much."

Thinking of this, he had a thought, and a phantom soul floated out from the white ring; it was none other than Venerable Heavenly Fire.

"Senior, please protect me."

Lu Yu bowed slightly and said respectfully, "I need to go into seclusion to cultivate for a while."

Venerable Tianhuo nodded solemnly and said, "Don't worry, Pavilion Master, with me here, I will not allow anyone to disturb us."

As the soul of Venerable Heavenly Fire drifted to the entrance of the meditation room to stand guard, Lu Yu took a deep breath, raised his hand to set up a barrier, and a glint of light flashed in his eyes. With a thought, a pale blue light screen slowly unfolded.

"Start simulation."

[Ding! Extracting a simulated identity for the host—]

[I. Disciple of the Tiangang Sword Sect—You are a disciple of the Tiangang Sword Sect, one of the three major powers of White Dragon Hill in the Northern Cang Continent. Due to your possession of a Earth-grade spiritual vein, you were accepted as a closed-door disciple by the sect leader, who personally instructed you in cultivation.]

[Second, Martial Spirit Academy Student—You are a core student of Martial Spirit Academy, one of the five major academies. You have been valued by an elder of Martial Spirit Academy and taken as a personal disciple. You have exceptional talent in body refinement.]

[Third, Dragon Demon Palace Spy—Due to your outstanding appearance, you were recruited and trained by the Dragon Demon Palace as a spy, and ordered to infiltrate the Northern Cang Spiritual Academy to lie low.]

Please make your choice——

Lu Yu glanced at the options in the simulation, skipping over the first one.

The Heavenly Gang Sword Sect is a Heavenly Transformation level power. The sect leader there might be weaker than me now. I wouldn't even go to that sect!
"Both the Martial Spirit Academy and the Dragon Demon Palace are supreme-level forces, but I've simulated the Martial Spirit Academy option before, so having experience makes me more familiar with it. I'll go with the Martial Spirit Academy."

After glancing at the other two options and thinking for only a few breaths, Lu Yu made his choice.

Then, with a thought, the light screen in front of him instantly changed.

[Selection successful! Identity loading...]

[In your first year, at the age of thirteen, you amazed everyone by achieving the highest score in the freshman assessment. The Third Elder of the Martial Spirit Academy personally appeared, praising you as having "dragon tendons and tiger bones, a once-in-a-century talent," and immediately accepted you as his personal disciple.]

[In the second year, having become familiar with the plot, you began to refine your physical body in preparation for cultivating the Heaven-Burning Glazed Body. At the same time, you selected a wood-attribute body-refining technique from the Spiritual Technique Hall—the mid-grade divine-level Taiyi Azure Wood Technique.]

Not long after, the Third Elder found you the Azure Wood Spirit Phoenix, ranked twenty-third on the Earth Ranking. You were both amused and exasperated, realizing you had made a fool of yourself, and made a special trip to help...

[Upon returning, he lied to the Third Elder, claiming he had obtained a mysterious cultivation technique—the Nine Heavens Sword Primordial Spirit Chapter—and used sword energy to forge the foundation of his divine soul, rendering him unable to refine the Azure Wood Spirit Phoenix.]

[The Third Elder was not angry but pleased, and imparted to you a top-grade divine spiritual technique—the Heaven-Burning Glazed Body. With the foundation laid by the Taiyi Azure Wood Technique, you progressed by leaps and bounds, and your physical body realm quickly broke through to the Fusion Heaven Realm.]

[In the third year, this time you didn't rush to find a different kind of fire to forge your spiritual veins. Instead, you focused on tempering your physical body and maximizing your strengths. As a result, your spiritual power cultivation was slightly slower, and you only broke through to the Transformation Realm. However, your physical cultivation advanced by leaps and bounds, reaching the peak of the Heavenly Connection Realm.]

[In the fourth year, the Spirit Academy Tournament begins. You find Wu Ling, the number one prodigy of the Martial Spirit Academy, and subdue him with overwhelming strength, recruiting him into your team and stepping into the battlefield of the Spirit Academy Tournament—the Ruins Continent.]

Under your command, the team was invincible, sweeping aside several strong opponents. Unfortunately, you were unable to find any trace of the Flame God Temple ruins this time.

[In the third month, you discovered a cave dwelling left behind by a supreme expert, only to encounter the Invincible Spirit Academy's team. After cautiously probing and confirming that their leader, Wen Busheng, had not received a supreme hand bone transplant, you decisively attacked with all your might, defeating him and seizing control of the ruins.]

[Deep within the ruins, relying on your knowledge of spiritual arrays, you quickly deciphered the remaining formations. On an ancient stone platform, you discovered a piece of supreme hand bone, as clear as jade, alongside a tattered map radiating strange fluctuations.]

What surprises you most is that behind the stone platform grows a fiery red Fire Spirit Lotus, its petals wreathed in vibrant flames and radiating pure fire energy. You carefully pluck it and place it in a specially crafted jade box.

[With the help of the Fire Spirit Lotus's energy, your spiritual cultivation has naturally broken through to the Heavenly Realm. Even more exciting is that, under the tempering of this energy, your Heaven-Burning Glazed Body has finally broken through its shackles and reached the Great Perfection Realm!]

[In the fifth month, thanks to your fully developed Heaven-Burning Glazed Body, you quickly overcame the physical challenges and, with the help of the Supreme Spiritual Liquid you scavenged from the ruins, steadily progressed towards the spiritual power challenges.]

[In the eighth month, you reached the peak of the Divine Soul Realm, and your team made it into the top eight. Just then, you encountered Xue Tianhe of the Blood God Academy once again!]

This time, you didn't hesitate. After entering the arena, you directly used your fully-developed Burning Heaven Glazed Body, combined with the powerful spiritual energy cultivated from the Nine Heavens Sword Primordial Spirit Chapter, to set up a Supreme-level spiritual array—the Burning Heaven Blazing Fire Sword Array—and defeated him in one move.

[Xue Tianhe's eyes were filled with disbelief. He had just stepped onto the stage when he was blasted away, his fate unknown.]

[Shortly afterward, you fought to a draw with Mu Chen using your Supreme-level Spirit Array, tying for first place.]

[In the fifth year, after successfully refining the Supreme Pill and breaking through to the Supreme Realm, you began preparing materials to refine the Sword Sun Undying Body. To this end, you and Mu Chen traveled together to the Great Luo Heaven Domain.]

[While traveling through the Shang Continent, you happen to encounter Princess Lin Jing of the Martial Realm being chased by members of the Xuan Tian Palace. In this critical moment, you unhesitatingly unleash the Burning Heaven Blazing Fire Sword Formation, repelling the leading Xuan Tian Palace prince.]

Just as the elders of the Xuantian Palace appeared, intending to capture you, a clear, cold voice suddenly resounded throughout the heavens and earth!

"You're incredibly stupid to dare kill a princess of the Martial Realm."

Before the words had even finished, a stunningly beautiful woman dressed in pristine white appeared in mid-air—none other than the Mistress of the Martial Realm—Ling Qingzhu!

Once the turmoil subsided, Mu Chen continued his training in the Great Luo Heaven Domain, while you accompanied Ling Qingzhu to the Martial Realm. Along the way, the Martial Realm matriarch observed you with a half-smile: "Young friend, there seems to be the aura of a Sword Domain technique on you?"

After you frankly admitted it, Ling Qingzhu personally took you on a trip to the Sword Domain...

In the sixth year, you came to the Sword Domain with Ling Qingzhu. To your surprise, after examining the cultivation technique you were practicing, the Sword Domain's Lord, the Green-Robed Sword Saint, praised you kindly and said he would no longer pursue the matter of you practicing the Sword Domain's techniques.

You were puzzled by this, but didn't ask any further questions.

[In the seventh year, after returning to the Martial Realm, as Lin Jing's savior, you received abundant cultivation resources. These resources were enough to support your cultivation to the Earthly Sovereign Realm. However, you always maintained a clear understanding—even without your intervention, with the Martial Realm's resources, Lin Jing would have been perfectly safe.]

For the next three years, you lived a secluded life, devoting yourself to research. Besides studying various body-refining texts in the Martial Realm Library, you spent your days in quiet contemplation, refining the essential techniques of your cultivation methods.

[In the tenth year, with a deafening roar, you finally broke through your seclusion. At this time, you had refined the *Taiyi Qingmu Jue* to a superior divine level, and further integrated the essence of five top-tier body-refining techniques: the *Nine Revolutions Golden Body Jue*, the *Xuanming Heavy Water Scripture*, the *Thick Earth Prison Suppression Method*, and the *Burning Heaven Glazed Body*.]

[Finally, you successfully created a body-refining technique that directly targets the Earthly Supreme Realm—the Five Treasures Spiritual Pivot Scripture!]

This technique draws upon the profound mystery of soul transformation into fire from the "Heavenly Fire Forging God Technique," which allows the combination of the five elements to forge a body of extraordinary fire, capable of both gathering and dispersing without form, and enabling the cultivation of all techniques!

[When Ling Qingzhu observed you practicing your technique, her beautiful eyes shone with admiration: "Based on the Five Elements, you fuse all techniques into one. Such talent truly befits a supreme being."]

[Afterwards, you will record your six body-refining techniques and your cultivation insights from the Nine Heavens Sword Primordial Spirit Chapter into the inheritance jade slip.]

[This simulation ends——]

You can choose one of the following three items.

【Part One, Supreme Hand Bone】

Second, the Supreme Pill

[3. Your inheritance jade slip]

(End of this chapter)