"Chu Nan, you must pay with your life for the Young Sect Leader!" Feng Yizhan, eyes bloodshot, shouted angrily at Chu Nan.

As the Great Elder of the Infinite Sword Sect, Feng Wujin was seen by him as the hope of the Sect's rise.

And yet, he was killed by Chu Nan, which was intolerable to him.

Chu Nan slowly descended from the air, never once glancing at Feng Wujin's corpse. He said calmly, "I regret Feng Wujin's death, but I gave him a chance in the end, which he refused to take."

"Given the circumstances, I had no choice but to kill him decisively."

Chu Nan's tone was indifferent. The path of a Martial Artist is fraught with countless hardships and crises, and Feng Wujin was but a shadow of many martial artists.

Chu Lingshan stood protectively in front of Chu Nan, saying, "In a life-and-death battle, casualties are inevitable. If you're not satisfied, the Spirit Corpse Sect welcomes the Infinite Sword Sect at any time!"

All the martial artists of the Spirit Corpse Sect stood together, confronting Feng Yizhan.

Feng Yizhan's face was grim. He knew he couldn't do anything to Chu Nan at the moment.

So he could only grit his teeth and say, "Fine, fine, fine."

"In that case, we shall meet again. Our Infinite Sword Sect will make you Spirit Corpse Sect pay!"

With those words, Feng Yizhan collected Feng Wujin's corpse and left with the disciples of the Infinite Sword Sect.

Neither Chu Nan nor Chu Lingshan stopped them. After all, Feng Yizhan was a Cloud Sea Realm Martial Artist, and dealing with him wasn't so easy.

For now, continuing to explore the Heaven-Shaking Secret Realm was the top priority.

"Chu Nan, congratulations on obtaining the Black and White Sword Saint's imperial-grade Spirit Martial. This sword once dominated the Celestial Crossing Realm, unmatched by anyone," Chu Lingshan praised generously, his eyes full of envy.

The Black and White Sword Saint was one of the most powerful Sword Cultivators in the history of the Qin Kingdom.

Though not born of a Strong Race, he could surpass warriors of Strong Races, traversing the world.

After his mysterious disappearance, endless speculation arose, and it was suspected he had long left the Celestial Crossing Realm.

Yet, unexpectedly, his sword appeared here, suggesting the Black and White Sword Saint might have met with misfortune.

"Sect Leader, wait a moment," Chu Nan said as he tapped his Storage Bag, taking out an empty Jade Scroll and inscribing its contents with his Spiritual Sense.

Soon, a complete and mysterious Cultivation Technique appeared in the Jade Scroll, which he handed to Chu Lingshan.

Chu Lingshan accepted the Jade Scroll and, upon inspection with his Spiritual Sense, his face immediately showed shock. "This is the Nine Heavens Secret Technique cultivated by the Black and White Sword Saint, the 'Dragon Roars Across Nine Heavens'!"

The Nine Heavens Secret Technique is the most precious Secret Technique in the Celestial Crossing Realm, allowing Cloud Sea Realm warriors at the peak to advance further, becoming formidable beings between the Cloud Sea Realm and Guiyuan Realm.

Strong Races and the Royal Family dominate the Qin Kingdom because they possess the complete Nine Heavens Secret Technique, rendering them invincible.

Obtaining the Nine Heavens Secret Technique is the foundation to contend with Strong Races.

"Our Supreme Elder reached the peak of the Cloud Sea Realm long ago but could only watch helplessly as his lifespan dwindled without the Nine Heavens Secret Technique."

"However, with this 'Dragon Roars Across Nine Heavens,' the Supreme Elder can break through again."

"Our Spirit Corpse Sect will truly possess power that Strong Races fear."

Chu Lingshan appeared excited, having searched the entire Celestial Crossing Realm for a step in the Nine Heavens Secret Technique, never expecting Chu Nan to give him one.

"Chu Nan, you are the number one contributor of our Spirit Corpse Sect!"

Chu Nan chuckled lightly, "As the Young Sect Leader of the Spirit Corpse Sect, this is what I should do."

Now bound to the Spirit Corpse Sect, only if the sect is strong enough will Chu Nan be safer.

Chu Lingshan nodded secretly, then advised, "This 'Dragon Roars Across Nine Heavens,' you must not share it, as it will be the highest secret of our Spirit Corpse Sect!"

The elders of the Spirit Corpse Sect nodded silently, equally excited at heart.

Chu Lingshan slightly regretted not killing Feng Yizhan, as he knew about the Black and White Guiyuan Sword and might have guessed they obtained the Nine Heavens Secret Technique.

Once discovered by Strong Races, they would surely be targeted.

"It seems we'll have to find a way to ensure the people of the Infinite Sword Sect perish in the Heaven-Shaking Secret Realm, allowing the Spirit Corpse Sect to develop safely."

After handing over the 'Dragon Roars Across Nine Heavens,' Chu Nan took a moment to restore himself before advancing further.

He barely intervened in the subsequent opportunities, immersing himself entirely in the comprehension of the Black and White Guiyuan Sword.

Beyond containing 'Dragon Roars Across Nine Heavens,' this Black and White Guiyuan Sword also had the Earth Tier high-grade Sword Skill, the Black and White Sword Technique, created by the Black and White Sword Saint.

This Sword comprises three forms: Black Silence, White Slaughter, and the final form, Black and White Strangulation!

"The Black and White Sword Technique requires me to comprehend three kinds of Martial Intent: darkness, light, and sword. Deploying a second-order Martial Intent means barely executing it. Only by comprehending third-order Martial Intent can the Black and White Sword Technique reach its strongest power, Unity of Heaven and Man."

Executing the Black and White Sword Technique isn't difficult for Chu Nan. The challenge lies in achieving the Unity of Heaven and Man realm.

Chu Nan only comprehended second-order Sword Intent and had never encountered darkness and light Martial Intent.

Nonetheless, he wasn't too concerned, for the Black and White Guiyuan Sword contained the comprehension of these three Martial Intents, saving much trouble.

The goal now is to cultivate the Black and White Sword Technique to the perfect realm, enabling its swift use in combat.

Thus, Chu Nan followed Zhi Qingge into the depths of the Heaven-Shaking Secret Realm, studying the Black and White Sword Technique simultaneously.

Three days passed in a blink, and under Zhi Qingge's guidance, the group arrived at the entrance of a pitch-black Earth Cave.

The howling wind echoed within, as if some ancient Demon Beast were wailing in agony inside.

Chu Nan gazed into the darkness of the Earth Cave, feeling an inexplicable tremor in his bloodline.

Zhi Qingge, wearing a serious expression, said solemnly, "This is the place. Our ancestor obtained Demon Blood from within this Earth Cave, leading our clan to become a strong race in the Imperial Capital!"

Outside this Earth Cave were only Chu Nan and a few others, no other forces in sight, yet they remained vigilant.

Chu Nan, with a grave tone, asked, "Do you know what the situation inside is?"

If the Heaven-Shaking Secret Realm indeed contained a Demon Beast carrying Ancestral Bloodline, it might very well be within this Earth Cave.

A Demon Beast whose blood alone could elevate Zhi's clan to a Strong Race was unimaginable in its might.

Having explored for so many days, Chu Nan abandoned the notion of devouring it with the Desolate Profound Transformation and simply hoped to obtain enough Demon Blood.

Using the Desolate Profound Transformation to absorb Demon Blood might yield benefits akin to absorbing a Yang Wheel Realm Ancestral Bloodline Demon Beast.

Zhi Qingge, with a look of regret, said, "Our ancestor never detailed the situation inside this Earth Cave, only advising against entering unless absolutely necessary."

Chu Nan nodded, looking at Chu Lingshan, "Sect Leader, shall we proceed?"

"Alright." Everyone could see the dangers within the Earth Cave, yet no one retreated.

After all, danger and opportunity coexisted. If Zhi's ancestor could emerge with Demon Blood, why couldn't they?

Chu Lingshan summoned a few Wandering Corpses to lead the way, while the others followed cautiously.

At this point, Zhi Qingge's role diminished as she stood at the center of the group, the safest spot.

Inside the Earth Cave, there was hardly any sunlight. Chu Nan released his Spiritual Sense to explore, but discovered it was seemingly constrained.

He could only extend it a meter, unable to expand it further.

"How strange," Chu Nan thought, closely following behind the Wandering Corpses.

Suddenly, Chu Lingshan exclaimed, "Look quickly, there's a red glow ahead!"

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