The Great Overlord: Simulating the Future, Dominating Speedrunning

Chapter 77: Refining the Heart Demon Thunder, Introduction to the Heart Demon Sutra!
Under the Thunder Demon Abyss,

Deep in the dark sea of ​​thunder,

Lu Chen sat cross-legged in the air, forming seals with his hands. The spiritual power in his body surged, and purple-gold flames swept out, wrapping the gray-black thunder seeds in front of him. With a whoosh, they were pulled into the Supreme Sea.

In the Supreme Sea,

As soon as the thunder seeds of the Netherworld Heart Demon Thunder entered it, they turned into invisible thunders that descended like a waterfall of thunder, pouring into the Supreme Sea and setting off huge waves.

Lu Chen's spirit emerged, and with a flick of his sleeve, clusters of purple-gold flames emerged from the sea surface, emitting dots of fluorescent light and a terrifying temperature.

Immediately, Lu Chen's eyes focused, and he put his hands together. The purple-gold flames suddenly gathered together, condensed and compressed, turning into pillars of flames that shot up into the sky and shot towards the sky full of thunder.

Boom boom boom!
Countless pillars of fire shot up into the sky, bombarding the layers of thunderclouds with a piercing sound, and soon spread out. Under the erosion of the Purple Extreme Luo Fire, the invisible lightning was quickly melted away, causing patches of inharmonious and strange colors to appear in the sky.

hiss!
The Netherworld Heart Demon Thunder seemed to be enraged, emitting bursts of thunder sounds like ghost howls, resounding throughout the sky, causing the strange color to quickly fade away.

Lu Chen's face was calm, and the seals on his fingertips suddenly accelerated. Countless purple-gold flame beams shot up into the sky, bombarding the clouds and causing ripples.

But in just a moment, under this swift attack, the Netherworld Heart Demon Thunder was defeated step by step, surrounded by countless purple-gold flames, and then suppressed.

The seal in Lu Chen's hand suddenly changed, and the purple-gold flame burned fiercely, making a hissing sound. Faintly, the lightning seed contained within it revealed a dark light. The two colors of light intersected and gradually showed a tendency to merge into one...

Time passed slowly during the refining process, and several hours later.

Lu Chen's tightly closed eyes trembled slightly, then slowly opened, and two different colors were reflected in his black eyes, one transparent color and one purple-gold color, which was extremely gorgeous and eye-catching.

Lu Chen clenched his right hand, and saw that spiritual power burning with purple-gold flames surged on his right hand, but within that spiritual power, there seemed to be an invisible thunder sound quietly coming out.

"Is the refining successful?"

"The next step is to practice the Supreme Heart Demon Sutra. Are you confident?"

Deep in the sea of ​​thunder, the "Martial Ancestor" was suspended in the air, looking at Lu Chen who had opened his eyes, standing with his hands behind his back, and said lightly.

Lu Chen nodded. With the experience in the inheritance jade slip and his current strength at the fourth-grade supreme level, he believed that the probability of him cultivating the Supreme Heart Demon Sutra was still very high, and there was little risk of going astray.

"Then go ahead."

Upon seeing this, "Martial Ancestor" said no more, slowly stepped aside, and watched quietly.

Lu Chen closed his eyes again and recalled the contents of the Supreme Heart Demon Sutra. With a thought, the Netherworld Heart Demon Thunder that had been refined in his body began to circulate along his meridians, and finally turned into a torrent, rushing straight towards the location of his heart.

hiss!
The sharp sound of thunder, like a ghost's howl, suddenly spread out above the heart. The sound of thunder echoed in Lu Chen's body, causing his internal organs to vibrate and even hindering the flow of blood.

In an instant, veins popped up on Lu Chen's face, his breathing suddenly became heavy, and he covered his chest with his hands, trying to endure the heart-wrenching pain.

This is the practice method of the Supreme Heart Demon Sutra. It involves bombarding the heart with the Netherworld Heart Demon Thunder countless times, and then allowing the power of the Netherworld Heart Demon Thunder to penetrate the heart, gradually condensing a Heart Demon seed deep in the heart.

Once the inner demon seed is formed, one can be considered to have entered the door of the Supreme Heart Demon Sutra.

Taking a deep breath, Lu Chen adjusted his state, and with a thought, he continued to urge the Netherworld Heart Demon Thunder to rush towards his heart! Boom boom boom!
A dull sound of thunder came from Lu Chen's body. Every time the thunder sounded, his body would tremble slightly and his heart would twitch unconsciously.

Boom!

Boom!

……

puff!
Finally, after dozens of attacks, Lu Chen couldn't help but spit out a mouthful of blood, but he wiped the blood from the corner of his mouth, a fierce look flashed in his eyes, and after taking a healing pill, he continued to practice with his eyes closed.

A few days later,

Lu Chen's body trembled slightly, and his tightly closed eyes suddenly opened slowly. He exhaled lightly, sensing the faint sound of thunder deep in his heart.

Looking down, he saw dark lightning patterns faintly visible on his chest. The lightning patterns intertwined and converged to form a dark lotus pattern that appeared on his chest.

That is the sign that the inner demon seed is taking shape.

"It's finally done."

"The next step is to cultivate the Great Sun Thunder Body."

Lu Chen looked at the "Martial Ancestor" beside him, only to see him nod at him, with a hint of satisfaction in his eyes.

Lu Chen immediately understood that the "Martial Ancestor" had been paying attention to him. He immediately felt relieved and formed seals with his hands.

boom!
There was a sound of thunder in Lu Chen's heart, and he slowly closed his eyes. When he opened them again, they had turned into a strange dark color, as unfathomable as a black hole.

Be careful of the demon state!
Lu Chen's eyes were like black holes, showing neither joy nor sorrow. In this state, he was absolutely calm and rational, and his heart would not be shaken by any external influence.

Lu Chen formed seals with his hands, and the spiritual energy in his body surged. The operation route of the Great Sun Thunder Body technique quietly began to circulate in his body.

Rumble!
As Lu Chen's skills were activated, his whole body began to tremble violently. Strands of invisible and intangible lightning filaments, invisible to the naked eye, slowly flowed out from his body, along his meridians, and into every part of his body.

Chi Chi!

The moment the invisible and intangible thunder surged into Lu Chen's body, his clothes instantly exploded, and dazzling lightning burst out from his body, turning into wriggling lightning snakes that spread all over his body.

Waves of violent power continuously drilled into various parts of Lu Chen's body, transforming his ordinary body.

boom!
There were continuous low rumbling sounds coming from Lu Chen's body, and a layer of dazzling dark lightning appeared on the surface of his body, turning him into a little black man.

Under the shining lightning, Lu Chen's expressionless face was reflected. The dark color in his eyes was like the calm surface of an ancient well, and there was no trace of pain on his face.

The internal skills are still running along the optimal route, constantly drawing on the power of the Netherworld Heart Demon Thunder to temper this ordinary body.

At the same time, Lu Chen's jade-white skin gradually changed color. A bright bronze color gradually emerged on the surface of his skin, and as time went by, it became more and more intense...

(End of this chapter)