With the inclusion of lightning, the tornado around Xiang Shaoyun grew much stronger. The two entirely different powers mixed, bringing about an unexpected result. It was a technique Xiang Shaoyun had comprehended long before this. Using this technique, he was able to barely resist the yin wind devil Sovereign.

Too bad I can't borrow the power of natural lightning here, or even a Devil Sovereign will die, thought Xiang Shaoyun.

After a while of deadlock, Xiang Shaoyun finally couldn't endure anymore and was forced to release his Nether Soul Domain. He was already doing very well to put on so much fight against someone absolutely stronger than him. It would be absolutely terrifying if he could rely on himself to kill the yin wind devil Sovereign. Perhaps he would be able to do that after he advanced by two or three stages.

The Nether Soul Domain appeared, isolating the yin wind devil Sovereign from the wind power gathered around him while numerous chains shot out toward him.

The yin wind devil Sovereign was overwhelmed with shock when he noticed his surroundings. "T-this is the innate prison ability of the paramount clan!"

The yin wind devil Sovereign created even more wind blades and surrounded himself with them. When the chains reached him, the blades actually slashed them apart. It was evident that the yin wind devil Sovereign was strong enough to contend with Xiang Shaoyun's Imperial Nether Prison.

Just as Xiang Shaoyun was about to intensify his attack, the yin wind devil Sovereign abruptly transformed into a gust of wind before rushing toward the border of the Nether Soul Domain.

Xiang Shaoyun assumed that the barrier at the border would be able to stop the yin wind devil's advance. However, the yin wind devil had undergone an extremely odd transformation, releasing a thick yin vicious energy that corroded the barrier before smoothly leaving.

This was the first time Xiang Shaoyun had encountered such a situation, and he was stunned. His Nether Soul Domain had only ever been smashed broken, not corroded. Nobody had escaped so easily before.

"Your highness nether devil, we are unwilling to be your enemy. Please spare us," said the yin wind devil Sovereign after pulling a great distance from Xiang Shaoyun.

He spoke the devil language, and only Xiang Shaoyun understood it here.

"I can spare you, but you need to tell me how you reached this place. Also, give me all your yin wind grass and yin wind stones," said Xiang Shaoyun coldly.

The Imperial Nether Clan had an incredibly high status among the devils. In comparison, the yin wind devils were nothing. That was why Xiang Shaoyun had the confidence to speak to the yin wind devil Sovereign with such a tone.

"We arrived here through the space tearing technique of the clan elder. If you want the yin wind grass and yin wind stones, we can give them all to you," said the yin wind devil as he quickly handed the grass and stones over.

As his feelers shook, over 10 stalks of yin wind grass and 3 pieces of yin wind stones flew toward Xiang Shaoyun. Xiang Shaoyun accepted them all without hesitation. The yin wind grass was a gray-colored herb. It did not look like anything special, but it was an emperor medicine that was extremely useful for wind cultivators. As for the yin wind stone, it was capable of gathering a large amount of yin wind energy, helping increase a wind cultivator's cultivation speed.

After putting the grass and stones away, Xiang Shaoyun asked, "What are you scheming by coming here?"

"Of course we're here to look for habitable locations among the human territory," said the yin wind devil Sovereign.

"How many people do you have?" Xiang Shaoyun asked.

"Not many came with us. The spatial tunnel opened by the elder is unstable. Many of them were killed on the way here. We are only the scouts. When the tunnel stabilizes, our main army will come over and take over the habitable locations we have found!" answered the yin wind devil Sovereign honestly.

In his eyes, Xiang Shaoyun was an imperial nether. They were both devils, and there was no need to hide their plan.

Xiang Shaoyun decided to take note of what he learned from the yin wind devil as he thought, Looks like the Sinister Wind Den is no longer a safe place. I need to report this to the academy.

He did not waste more time with the yin wind devil Sovereign. After getting what he wanted, he sped off. Along his way, he saw many yin wind devils killing beastmen and demonic beasts.

Fortunately, not all the yin wind devils were strong. Those beastmen and demonic beasts were not pushovers either. They were in the midst of an intense battle, and it did not seem like there would be a victor anytime soon.

It wouldn't be easy for the yin wind devils to occupy this place, and it would only be possible if their more powerful reinforcements arrived. Xiang Shaoyun heaved a breath of relief upon this realization. Looks like things have yet to fully deteriorate. If the tunnel manages to stabilize, chaos will come to the surface world.

The surface races had always been the devils' mortal enemies. Between them, only killing existed. It was hard for the two to coexist peacefully. Since Xiang Shaoyun had already comprehended the profundity of wind and obtained the yin wind grass and yin wind stones, this trip was already worth it. Just as he was about to go to the exit, he found Aikai following him.

Xiang Shaoyun turned around and asked, "Why are you following me? I gave you the antidote already."

Aikai hesitated for a bit and said, "I-I wish to leave with you."

"You want to leave with me? Why?" Xiang Shaoyun asked in astonishment.

Aikai said, "Humans have long locked this place down, and it is extremely hard for us to leave. Now that the yin wind devils have invaded, my clan will not be able to resist them. I wish to leave and find a way to advance. I want to become stronger before coming back to deal with the devils!"

"Why should I bring you with me?" Xiang Shaoyun asked.

Aikai's expression shifted as he clenched his teeth and said, "I can serve you! In truth, I have long wanted to leave this place and see the dominion with my own eyes. I believe that by following you, I will be able to fulfill that wish."

After saying that, he knelt down on one knee and rested a hand on his chest, swearing loyalty to Xiang Shaoyun. His actions caused Xiang Shaoyun to blank out. He had not imagined that this feathered beastman would actually swear fealty to him. Moreover, it did not seem like a joke.

After thinking about it, he felt that Aikai probably really wanted to leave this place, but the reason for that might not necessarily be for coming back to take revenge on the devils in the future.

However, the revenge did not concern him. So long as Aikai stayed loyal, this could be considered something good for him as well. For now, he lacked helpers. Aikai was a peak Emperor, so he could be useful.

Furthermore, Aikai could be classified as a tamed beastman so he could bring him into the academy. As far as the academy was concerned, it was the same as having tamed demonic beasts. There wouldn't be any issues.