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

Chapter 89 The Floating Pagoda Spiritual Vein, Seven-Star Fighting King!
Back in the quiet room,

Lu Yu sat cross-legged, and with a slight thought, the Floating Pagoda within his body trembled gently. Instantly, three strange flames of different shapes appeared one after another before him.

The first to leap out was the gilded pagoda fire, resembling a magnificent golden dragon circling in the air. The dragon's eyes, formed from the flames, were full of spirit, and every dragon scale shimmered with dazzling golden light.

Next came the dark, ghostly Netherworld Demonic Flame, which surged and transformed into a ferocious black python. The jet-black flames flickered erratically, radiating a chilling aura.

Finally, what appeared was a blue-red geomantic flame, shaped like a small fire dragon. With blue scales and red claws, it was the smallest in size, yet it radiated an astonishing heat wave.

Lu Yu's gaze swept between the three flames, comparing them in his mind.

Among the three fires, the Floating Pagoda Fire is undoubtedly the most powerful, far surpassing others in both potential and current strength.

Although the Netherworld Heart Demon Fire is a sub-fire, it originates from a supreme-level source, with potential second only to the Floating Pagoda Fire and power surpassing the Earth Core Flame.
As for the Earth Core Flame, it was originally on par with the Azure Lotus Earth Core Flame, but after absorbing the Origin Heart Flame at the half-step Dou Wang level, although it did not evolve again, its origin has been greatly enhanced. Lu Yu estimated that it should now be roughly equivalent to the Wind Fury Dragon Flame in Xiao Yan's hands.

“A spiritual vein created with Earth Core Flame is undoubtedly a human network; Brother Yan has already verified this.”

"The Netherworld Heart Demon Flame is considered a sub-flame at the Dou Sheng level. Although its power is currently only at the Dou Wang level, its origin is extraordinary. It may condense a Earth-level spiritual vein. If it can be successful, the chance of breaking through to Dou Sheng in the future can increase by at least 30%."

"As for the Floating Pagoda Fire..."

Lu Yu pondered for a moment. Although the Floating Pagoda Fire was currently a Dou Wang-level strange fire, as the primordial fire nurtured by the Floating Pagoda, its potential was closely related to the Great Floating Pagoda Technique.

In theory, the Great Floating Pagoda Technique can be cultivated to the Saint-grade Heavenly Supreme realm, but this does not mean that the Floating Pagoda Fire is currently a sub-fire at the Saint-grade Heavenly Supreme level.

"Countless members of the Ancient Floating Pagoda Clan have cultivated the Great Floating Pagoda Technique, but only a few dozen have been able to break through to the Heavenly Supreme realm..."

Lu Yu calmly analyzed the situation. He knew that although the Floating Pagoda Fire nurtured by his newly formed Floating Pagoda was far superior to the Netherworld Heart Demon Fire, it was far from reaching its peak.

"Only by breaking through to the Earthly Supreme level and elevating the Floating Pagoda to a sacred object can a true qualitative change occur."

Lu Yu finally came to a conclusion, thinking to himself, "The current Floating Pagoda Fire should be considered a very high-ranking sub-fire among the Supreme-level ones, but it is still far from being a Saint-grade one."

"According to the classification of spiritual veins in the Great Thousand World, spiritual veins are divided into nine levels: the first and second are earth veins, the third and fourth are earth veins, the fifth and sixth are heaven veins, and the seventh to ninth are divine veins. Using the newly formed Floating Pagoda Fire to create a spiritual vein, it must be an earth vein without a doubt, but it is difficult to guess what level of earth vein it is..."

"If one uses the Floating Fire nurtured by the Floating Pagoda, a sacred artifact, to shape a spiritual vein, it might be possible to reach the Heavenly Vein level. Even the lowest level five Heavenly Vein could potentially reach the Great Perfection of the Earthly Sovereign realm."

"As for the sixth-level Heavenly Vein, it is already considered the top-tier talent below the Divine Vein. If one cultivates step by step, one can at least reach the Quasi-Heavenly Supreme realm, and may even have the potential to break through to the true Heavenly Supreme realm!"

Lu Yu stroked his chin and nodded, saying, "In that case, using the Floating Pagoda Flame to condense a level-earth spiritual vein is indeed the best choice, at least guaranteeing cultivation to the Dou Sheng level..."

Before he could finish speaking, he suddenly seemed to remember something and said thoughtfully, "I wonder how Xun'er is doing. That girl's Golden Emperor Burning Heaven Flame..."

"Her origin is at least at the Dou Sheng level. If she can use this fire to forge her veins, they will surely become Earth-grade spiritual veins. Add to that that girl's innate divine bloodline..."

A smile involuntarily crept onto his lips, and he could almost picture the familiar girl's future, sweeping across the land with unparalleled grace and dominance.

"That girl's talent is likely to shock the entire Dou Qi Continent."

A strange light flashed in Lu Yu's eyes. He shook his head with a light laugh, then composed himself and turned his gaze back to the three strange flames in the room.

After a moment of contemplation, his gaze fell upon the Netherworld Demonic Flame and the Earth Core Flame, and his hands instantly formed a profound hand seal:

"receive!"

The black python formed from the Netherworld Demonic Fire and the dragon condensed from the Earth Core Flame instantly transformed into two streams of light, disappearing back into the Floating Pagoda within his body. The pagoda trembled slightly, and the eighth and ninth floors lit up with black and blue light respectively, before returning to stillness. At this moment, only the gilded Floating Pagoda Fire Dragon remained, circling in the air, its intense light illuminating the entire stone chamber as if it were daytime.

Lu Yu took a deep breath, his gaze falling on the gilded fire dragon swirling in front of him. He slowly formed hand seals and activated the Great Floating Pagoda Technique within his body.

"Congeal!"

With a soft shout, the Floating Fire Golden Dragon roared to the sky, transforming into a dazzling golden torrent that surged towards Lu Yu's dantian.

At the same time, thirty-six major acupoints on his body lit up, twinkling like stars and forming a mysterious array.

"boom!"

The moment the golden flames entered his body, Lu Yu trembled violently. The domineering power of the Floating Pagoda Fire surged through his meridians, reshaping his flesh and bones wherever it passed. He gritted his teeth, beads of sweat forming on his forehead, yet he remained steadfast in his hand seal posture.

Outside the meditation room, the once clear night sky suddenly became turbulent with wind and clouds. The energy of heaven and earth within a hundred miles frantically converged towards the inner meditation room, forming a huge energy vortex.

The teacup in Little Fairy Doctor's hand suddenly shattered. She looked up in astonishment and said, "This is..."

Zi Yan leaped to her feet, her golden pupils constricting, and exclaimed, "What terrifying energy fluctuations!"

At this moment, inside the quiet room, a tremendous transformation is taking place within Lu Yu's body.

The Floating Fire surged and flowed through the meridians, seemingly rampaging wildly, but in reality following a mysterious trajectory. As it was continuously refined and condensed, four dazzling golden stars gradually emerged in the dantian, slowly rotating in a four-directional pattern.

Each star exudes a vast and abyss-like pressure, and they are connected by golden rays, forming a perfect energy circuit.

This peculiar structure resonates subtly with the outside world, drawing in the surrounding energy like rivers flowing into the sea.

At the same time, mysterious golden patterns gradually appeared on Lu Yu's skin, flowing and shimmering like ancient runes. Wisps of golden flames rose and swelled from his pores, each cycle causing a subtle yet profound transformation in his body.

At this moment, he could clearly sense that his connection with heaven and earth was becoming closer and closer, as if every move he made could draw upon the vast power of heaven and earth.

I don't know how much time has passed.

The dazzling golden light in the quiet room gradually faded away like the tide.

The seated figure gradually became clearer, the golden patterns on its body had disappeared, and only the occasional glimmer of light flowing beneath its skin witnessed the amazing transformation that had just taken place.

"boom!"

Lu Yu suddenly opened his eyes, golden light bursting forth from them. With a deafening roar, he opened his mouth and swallowed all the remaining energy of heaven and earth in the quiet room, completing the final cycle of his life.

In an instant, a terrifying pressure swept in all directions like a volcanic eruption, and the entire quiet room trembled violently.

A shackle within his body shattered instantly.

Seven Star Fighting King!

Lu Yu slowly stood up, feeling the surging power within him, a satisfied smile appearing on his lips:
"Level four earth vein, complete!"

(End of this chapter)