Simulator: Starting as a Green Snake and Transforming into a Dragon

Soon, they arrived at the underworld. The Black Mountain Demon immediately sensed it, and boundless ghostly energy surged forth, enveloping them.

The Black Mountain Demon saw Gu Yuchuan: "So it's you. You killed the Tree Demon Granny, and I haven't even had time to look for you yet. How dare you come to my side? It's laughable. Are you prepared to die?"

A mocking smile played on Gu Yuchuan's lips: "Fine, are you ready?"

He gripped his spear tightly, and the two human cultivators behind him stepped forward.

A hint of mockery flashed in the eyes of the Black Mountain Demon: "So it's just the three of you trash gathered together. But even three trash together are still trash. I am far stronger than that centipede demon."

As he spoke, the ghostly energy of the entire underworld began to gather, and Gu Yuchuan's eyes underwent a slight change.

"Black Mountain Demon, you've actually become the master of the underworld. You've got some skills, but that's all. The underworld's autonomy is nothing but this in front of me. Let's make our move. I'm too lazy to waste words with you."

Many skulls flew out from the Black Mountain Demon's body. These were all parts of his true form, and they looked very powerful. Gu Yuchuan was not afraid at all and raised his spear to strike.

Both being at the eighth level of the Nascent Soul realm, the Black Mountain Demon's combat power was indeed far superior to that of the Centipede Demon. This was truly the Lord of the Underworld. To be honest, Gu Yuchuan felt pressured in the fight, but he had prepared for the decisive battle beforehand.

He has a backup plan; once it's released, the death of the Black Mountain Demon will be very easy.

He took out the thousand-year-old wood core he had used to kill the tree demon, and Nie Xiaoqian's soul was hidden inside.

"Black Mountain Demon, don't you think the ghosts here look very familiar?"

The Black Mountain Demon's eyes flickered with panic for a moment, and he stopped casting spells, clearly hesitant to act rashly.

However, he didn't reveal a single piece of information.

"A mere Foundation Establishment stage ghost can be as many as I want in this underworld. If it has any supernatural abilities, you'd better prepare to die with it."

Gu Yuchuan's lips curled into a half-smile, a smile that was clearly full of sarcasm.

"Is that so? If I'm not mistaken, this is your reincarnation in the mortal realm. You tried to use him to reincarnate as a human and unify the Yin and Yang realms. Am I right? But you never expected that Heaven would turn against you in the end, causing Nie Xiaoqian to develop her own consciousness, which you found difficult to take back. That's why you subdued the Tree Demon Granny. You wanted the Tree Demon Granny to help you send Xiaoqian back to the underworld. Tell me, is that right or wrong?"

The Black Mountain Demon forced himself to remain calm, but his expression still proved that Gu Yuchuan was right.

Gu Yuchuan knew about this the moment he first saw Nie Xiaoqian, but Nie Xiaoqian herself was unaware of it.

This was the backup plan for killing the Black Mountain Demon. He and Nie Xiaoqian were essentially the same thing. Killing Nie Xiaoqian would have a significant impact on the Black Mountain Demon.

At best, it might just be a drop in cultivation level; at worst, it could result in serious injury, leaving the victim with no ability to resist.

The Black Mountain Demon realized what was happening and had already used all his abilities. Instantly, the entire underworld was thrown into chaos, filled with countless wails and howls of ghosts.

These commotions filled the two powerful cultivators at the seventh level of the Nascent Soul stage with uncertainty, as they felt they might not be able to stop this attack.

But Gu Yuchuan wasn't afraid at all; he crushed Nie Xiaoqian's soul.

With Nie Xiaoqian's meager cultivation level, it was utterly impossible for her to withstand Gu Yuchuan's magical power. Without any effective resistance, she was reduced to several pieces.

Instantly, the Black Mountain Demon encountered a huge problem. His magic power began to slip out of his control, and he could no longer fight against the ghostly energy that filled the sky. The skulls on his body also began to shatter.

It was clearly visible to the naked eye that the Black Mountain Demon was injured, and the injury was quite serious.

He shouted, his voice neither male nor female, and it sounded eerie.

"You don't think you can defeat me so easily, do you? I am the Black Mountain Demon, the strongest in this world. I'm telling you, you will all die by my hand."

As he spoke, Gu Yuchuan activated his Dragon Transformation Technique, greatly enhancing his strength. He raised his spear and charged forward.

The Black Mountain Demon's defenses were like paper under the spear, quickly turning into fragments as the spear pierced into his body.

Instantly, the dragon energy and magical power began to destroy his body. He was already seriously injured, and with these additional injuries, he was not far from death.

His eyes were filled with resentment, even a hint of despair. At this moment, he realized that he was no match for the three people in front of him. He didn't know why he felt this way.

His plan was already very well done. Only the Heavenly Dao could vaguely see through Nie Xiaoqian's scheme, but it was impossible for them to truly know her identity. Why was it that the dragon in front of them could see through it?

Thinking about these things now is useless. He only has one thought: to make these cultivators in front of him pay the price. He can die, but he wants them to die too.

He soared into the air, ignoring his injuries; at that moment, he was a dying man seeking revenge.

"Fine, my thousand-year plan has come to naught in a single day. Since you want me dead, then let's die together."

After saying that, his body began to grow enormous, indicating that he was about to self-destruct. The two cultivators behind Gu Yuchuan immediately used all their defensive measures, but they realized that they couldn't defend against it; the difference in strength was too great.

Gu Yuchuan couldn't hide his smile. This was the result he wanted. If he could take the two of them with him after the Black Mountain Demon self-destructed, there would be no more powerful figures in the Liaozhai world, and no one would be able to resist Gu Yuchuan's invasion.

However, the power of this self-destruction was still very great, and Gu Yuchuan felt that it would be difficult for him to resist. He summoned a talisman, which was fortunately a talisman with defensive attributes. Even if it was an attack from a Nascent Soul stage Venerable, it could withstand it for a short time.

The Black Mountain Demon's self-destruction swept across the entire underworld, even illuminating the entire underworld.

As expected, Xinghe Sword Immortal and Abbot Xuanyou died. With this, the problem of Gu Yuchuan's invasion has been completely solved. The next step is to have his people purge the Golden Core stage cultivators. Then they can devour the power of the Heavenly Dao and the power of the world. Of course, half of this will be given to the Qingyun Realm, as they have agreed.

However, the other half is also very precious and can bring many benefits to the cave.