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

Chapter 118 Netherworld Poison Swamp, Netherworld Poison Fire!
After counting the interest,

Lu Yu's body suddenly trembled.

The cool sensation in his mind receded like a tide, and the phantom of the ancient Bodhi tree shattered and vanished. In an instant, an unprecedented sense of stagnation filled his mind, his thoughts seemed to sink into a quagmire, and even the simplest deductions became incredibly difficult.

"hiss……"

Lu Yu couldn't help but rub his temples, feeling dizzy and completely different from the insightful feeling he had just had.

He couldn't help but smile wryly: "This Little Bodhi Pill actually has such side effects..."

After calming down a bit, he shook his head. This state was just a temporary discomfort from suddenly leaving the state of enlightenment, and he could recover after a little breathing.

Compared to the miraculous effects of the Supreme-grade Divine Pill, this minor side effect is negligible.

……

Several days later, at dawn.

Lu Yu pushed open the heavy stone door of the quiet room, and the long-awaited sunlight fell on his shoulders.

Looking up, one could see Zi Yan sitting cross-legged on a pile of treasures in the center of the hall, playing with a sixth-order magic core in her hand.

Meanwhile, Little Fairy Doctor squatted to one side, carefully sorting through various poisonous herbs.

"How was the harvest?" Lu Yu dusted off his sleeves and approached with a smile.

Little Fairy Doctor looked up at the sound, a hint of joy flashing in her purple eyes. She gently tucked a strand of hair behind her ear and said softly, "As expected of an old power that has been entrenched in the Scorpion Mountain Range for hundreds of years, these treasures are indeed astonishingly rich."

Following her guidance, Lu Yu could clearly see the various treasures inside the hall:
On the left side, various medicinal herbs were piled up like mountains. The third-tier purple Ganoderma lucidum emitted a faint glow, the fourth-tier Dragon Blood Ginseng had gnarled roots, the fifth-tier Cold Marrow Branch was still covered with frost, and more than a dozen sixth-tier medicinal herbs shone brightly in the jade box.

In the central area, hundreds of magic cores were neatly arranged in several wooden boxes, ranging from third to sixth tier, including even a seventh-tier Blood Demon Scorpion King's magic core.

The area on the right was much more sinister. Dark green poisonous plants were sealed in special containers, various ancient books on poisons were carefully placed on jade shelves, and several sealed bottles of venom gleamed with eerie iridescent light under the illumination.

"These medicinal herbs and magic cores are entrusted to you for safekeeping."

Little Fairy Doctor said softly, then pointed to the area on the right, "As for these poisons and poison scriptures... they are of great help to my cultivation of the Calamity Poison Body."

Lu Yu nodded, then turned to look at Zi Yan and asked, "Zi Yan, aren't you going to pick something you like?"

Upon hearing this, Zi Yan gracefully flipped down from the pile of treasures. She crossed her arms and said seriously, "I'm not a child anymore. I've grown up now, and these medicinal herbs are of little use to me."

"You can take them all."

As she spoke, she casually tossed a sixth-tier magic core to Lu Yu: "Here, keep them all. We'll talk about better ones later."

Lu Yu chuckled upon hearing this, raised his hand and put all the remaining items into his storage ring, saying, "Since that's the case, then I'll accept it without further ado."

He paused, then turned to Little Fairy Doctor and said gently, "If you have any suitable medicinal herbs, feel free to come and get them. We'll be heading to the Netherworld Poison Swamp soon. I've already refined the Earth Spirit Pill."

As he spoke, he handed a jade bottle to Little Fairy Doctor.

Little Fairy Doctor paused slightly, a gentle light rippling in her purple eyes. She carefully took the jade bottle, a barely perceptible tenderness flashing in her eyes.

"Thank you..." she whispered, her voice as clear as a mountain stream. A faint smile unconsciously appeared on her lips, a smile that seemed to brighten the entire hall.

Zi Yan, standing to the side, pursed her lips, but a hint of gentleness flashed in her purple dragon eyes.

She deliberately coughed loudly: "Hey! How long are you two going to keep flirting like that? I'm getting sick of it!"

Lu Yu couldn't help but shake his head and chuckle, while Little Fairy Doctor blushed instantly and hurriedly turned her face away. However, her slender fingers gripped the jade bottle even tighter, refusing to let go no matter what.

……

Not long after, on the edge of the Netherworld Poison Swamp in the Izumo Empire.

A thick, gray miasma shrouded the entire swamp like a heavy curtain, and the air was filled with a pungent, putrid stench.

The dead trees twisted their branches, like monsters struggling in their death throes. Dark green bubbles rose from the surface of the swamp from time to time, making a chilling "gurgling" sound when they burst.

Lu Yu and his two companions stood on the rocks at the edge of the poisonous swamp, gazing at the deathly landscape before them. A biting wind, carrying poisonous fumes, swept over them, causing their robes to flutter wildly.

"The concentration of toxic gas here is more than 30% higher than rumored."

Little Fairy Doctor frowned slightly, her slender, fair fingertips glowing with a faint purple light as she meticulously sensed the toxins in the air.

A hint of seriousness flashed in her purple eyes as she solemnly said, "In addition to the common miasma, it also contains at least seventeen different kinds of deadly poisons."

"Staying here for an extended period of time would be unbearable even for a Dou Huang level expert!"

Zi Yan crossed her arms, a hint of disdain flashing in her eyes, and said, "Mere poisonous miasma is nothing more than an appetizer to me."

As she spoke, a faint purple-gold light shield rose around her, completely blocking the oncoming poisonous gas. Fine dragon scale patterns were faintly visible on the light shield, demonstrating its powerful defensive capabilities.

Lu Yu's gaze swept across the vast poisonous swamp with lightning speed.

After a moment of contemplation, he said in a deep voice, "This poisonous swamp is too large. It will be more efficient for us to split up. Ziyan will be in charge of the eastern area, Xian'er will explore the western perimeter, and I will go directly into the central area to search for the Netherworld Poison Fire."

"no!"

Little Fairy Doctor suddenly grabbed Lu Yu's wrist, her purple eyes filled with worry and determination.

Her slender fingers unconsciously tightened: "The core area of ​​the Netherworld Poison Swamp is where the poison is most concentrated. It is said that even a Dou Zong expert would have difficulty escaping unscathed. I will go with you; my Calamity Poison Body can be of help."

Zi Yan pursed her lips, waved her hand casually, and said, "Hey, if you encounter any trouble, just send a signal, and I'll be there as soon as my dragon wings spread."

A warm feeling welled up in Lu Yu's heart, and the corners of his mouth unconsciously turned up. He gently patted the back of Little Fairy Doctor's hand and said softly, "Don't worry, I have three different flames protecting me, even the Netherworld Poison Flame can't do anything to me."

Seeing that Little Fairy Doctor still hesitated, he added, "Meet here in two hours. If you encounter danger, just crush the signal flare to summon Zi Yan."

Finally, Little Fairy Doctor nodded gently.

Immediately, the three figures transformed into streaks of light and disappeared into the dense poisonous miasma...

……

After a while,

Swish!
Lu Yu's purple-gold wings suddenly flapped, drawing a streak of purple-gold light through the dense poisonous miasma.

He moved like lightning, speeding towards the deepest part of the poisonous swamp.

Along the way, countless poisonous creatures were disturbed in the swamp. However, when these creatures sensed the terrifying aura emanating from Lu Yu, they fled in panic as if they had encountered their natural enemy, scattering in all directions in an instant.

Lu Yu's lips curled up slightly, and instead of slowing down, he accelerated a bit.

A wisp of blue flame ignited at his fingertips, acting as a guiding light amidst the dense poisonous miasma. Through the unique connection between the different flames, he could vaguely sense the direction of the Netherworld Poison Fire.

"It's right in front..."

Lu Yu's gaze sharpened, and his speed increased even further.

……

(End of this chapter)