Sixty thousand years ago.

After Yao had helped the Ancestor of the Nether King to rule over the Netherworld, he never expected that the Ancestor of the Nether King would order his capture.

However, in the end, the Ancestor of the Nether King, remembering their past relationship, did not kill Yao, but imprisoned him beneath the walls of the Netherworld's gate.

Sun Shouyi's grandfather was the person dispatched by the Ancestor of the Nether King to handle this matter! He used a technique to freeze the power within Yao's body, and with the shell of a millennium Nether Turtle, sealed and suppressed the prison holding Yao.

Before dying, Sun Shouyi's grandfather told Sun Shouyi's father how to break the Nether Turtle's shell seal and awaken the power within Yao's blood, a method that was later passed down to Sun Shouyi by his father.

Sun Shouyi did not know why his grandfather had passed on these secrets to later generations; he only knew that at this time, these secrets were very useful to him.

He needed to find Yao and then negotiate with him. If Yao agreed to save him, he would undo the seal and release Yao.

In his view, with Yao's abilities, escorting him to escape should not be a problem. Moreover, it was rumored that Yao had an army that had vowed to die for him; he could use Yao's army to make a comeback.

With that, he said to the soldiers beside him, "Quick, go out and block Niu Tou and Ma Mian!"

"Yes!" Seven soldiers drew their swords and charged out of the battlements and began shouting loudly beneath the wall, sending out signals. Immediately, thousands of elite Sun family troops stationed beneath the gate of the Netherworld rushed up the wall.

And on top of the wall, Niu Tou and Ma Mian charged forward while splitting into clones. In an instant, the passageway was crowded with over three thousand Niu Tou and Ma Mian.

Because each Niu Tou and Ma Mian was strong and tall, the charge of thousands of them together made the whole wall tremble and produced a thunderous rumble.

Below, the Yin Souls near the Netherworld's gates were so frightened by the noise that they scurried towards the other end of the Naihe Bridge. The soldiers guarding the bridge were extremely surprised; since they could not see what was happening on top of the wall, they did not know exactly what had occurred.

And further afield, within Netherworld City, the people who heard this commotion inevitably turned their gaze towards the Netherworld's gates. Like the bridge guards, they could not see what was happening on the wall because it was obscured by a mass of dark clouds.

"Could it be that the city guards and Niu Tou Ma Mian's army have started a battle?" someone guessed.

"No, that's not right. Although today is the deadline, the hour has not yet come!"

..

..

Taking advantage of his men's head-on fight with Niu Tou and Ma Mian, Sun Shouyi hurried down the stairs within the parapet toward the base of the wall.

More than ten days ago, when Sun Shouyi had just moved into the parapet, he had stealthily explored the paths beneath the wall during the quiet hours of the night. Eventually, he had found the underground prison where Yao was confined.

So, soon enough, he stood in front of the prison door where Yao was held.

Above that stone door lay a huge turtle shell, with each half resting on the two sides of the door. This shell was the millennium Nether Turtle shell used by his grandfather to seal the prison.

The shell was not only exceedingly hard but also possessed powerful Spiritual Power.

In the Netherworld at that time, apart from the mysterious ancient beasts from Polar Ice Land, perhaps only the Ancestor of the Nether King, wielding the Nether King's World-Slaying Blade, could have broken the shell with brute force.

Now, with the Ancestor of the Nether King gone and the whereabouts of the Nether King's World-Slaying Blade unknown, it was feared that no one could break this Barrier with strength alone.

After taking a deep breath, Sun Shouyi stepped up to the prison gate, then closed his eyes and slowly extended his left hand to touch the cold stone door, feeling the power of the seal.

Following the method taught to him by his dying father, Sun Shouyi chanted the spell to lift the seal while twisting his palm.

What did the spell say? Sun Shouyi did not know. Listening to the syllables of the spell, he guessed that it must be a language from some long-lost ancient tribe of the Netherworld.

"Buzz, buzz, buzz!" As Sun Shouyi's left palm rotated half a circle against the door panel, the turtle shell on it began to tremble and shake.

Startled, Sun Shouyi opened his eyes to look at the turtle shell, then sped up the pace of his incantations.

After a while, the trembling of the turtle shell intensified, and the stone door also began to quiver slightly.

A bit later, the violently trembling turtle shell looked as if it was about to peel off the door, and the two sides of the stone door had already started to separate slightly, with a strange and foul-smelling chill seeping out from the cracks.

Faced with this cold air, Sun Shouyi was astounded, thinking to himself how much it smelled like the stench of a corpse. Could it be that Yao had already died inside?

At that moment, a purple light flashed across the turtle shell, followed by a burst of purple gas that seeped from the shell and diffused into the air.

This gas was the Spiritual Power contained within the turtle shell.

Feeling the powerful Spiritual Power around him, Sun Shouyi couldn't help but marvel at the abundance of Spiritual Power within the turtle shell. No wonder the Ancestor of the Nether King had used the shell of a thousand-year-old nether turtle for the seal, as brute force alone could never break it.

A quarter of an hour later, the turtle shell finally stopped releasing the purple gas, and by this time, the air was so filled with Spiritual Power that Sun Shouyi felt he was almost unable to breathe.

Being the clan leader of a great family, his own Spiritual Power was naturally extraordinary. Within the entire Netherworld City, the number of people with more Spiritual Power than him could be counted on one hand.

However, he had never expected that today he would be suffocated by another surge of Spiritual Power.

With a "thud," the huge turtle shell fell to the ground.

Sun Shouyi hurriedly moved his foot away, fearing the turtle shell would crush it.

He then gently pushed the door open and peeked inside for a while before entering.

He shivered. The cold in the prison was truly oppressive.

"King Nanlin!" Sun Shouyi called out cautiously as he made his way toward the darkness ahead. King Nanlin was the title bestowed upon Yao.

Back when the Hell King's five princes waged war on the Netherworld, it was Yao who led his warriors deep into the southern forests, and after defeating the southern barbarians, he was granted this title.

According to Sun Shouyi's plan, Yao should be in a deep slumber at this time, his blood and strength sealed. He needed to attach his own Nether Soul to Yao's body, then enter Yao's consciousness to negotiate with him.

Yet, before he could reach the end, the air around him suddenly filled with a Spiritual Power so overwhelming that it choked him.

"Ah!" His eyes rolled back.

Just then, two crimson lights appeared about twenty paces in front of him.

Those were a pair of eyes!

Eyes filled with anger.

Regaining his composure from the shock, Sun Shouyi realized that Yao's blood and strength had awakened.

Just as he thought of running away, a stream of red blood sprayed out from Yao, hitting Sun Shouyi directly.

Immediately after, a crimson flame ignited on Sun Shouyi's body.

"Ah!" Sun Shouyi let out a painful scream.

"Hmph, hmph!" Yao let out a cold laugh, "Nether King's Heart, my Nether King's Heart!"

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