The Thousand Kills Emperor Lord, who was trapped in the Wavelight sword formation, kept swinging the blood-colored axe in his hand. With every swing of the axe, the Thousand Kills Emperor Lord used all of his strength and released many blood-colored axe shadows. Only then did he manage to defeat the waves of sword intent that were surging around him, however, after the first wave was defeated, the second wave immediately followed. It was endless and never-ending.

Even Thousand Kills Emperor Lord felt as if he had fallen into an endless quagmire.

“Third axe!”

A shocking killing intent swept out from Thousand Kills Emperor Lord’s body as three gigantic blood-colored axe shadows appeared in the air and fused together.

The axe slashed down fiercely.

Thousand Kills Emperor Lord’s third axe was already the strongest axe he could unleash without using his trump card.

Even so, when the axe struck the surrounding Wavelight sword formation, countless waves surged and collided with the power of the axe shadow.

In the end, the power of the third axe took a lot of effort to break the Wavelight sword formation.

When the sword formation collapsed, the surrounding sea of sword essence naturally dissipated.

Thousand-edge Demon Monarch came to Jian Wushuang.

“Master, your Light Sword Formation is more difficult to deal with than before. Even if I’m trapped in this sword formation and hit by the waves of sword essence, I have to deal with it seriously. If I’m trapped in it for a long time, I’ll have a headache.”

“Moreover, this sword formation is much stronger than the last time you used it. Last time, when you used this light sword formation, I could easily break it with my third axe. But this time, although I also broke it with my third axe, it was unusually difficult. I could even say that I barely broke it,” Thousand-edge Demon Monarch said.

Thirty years ago, when Jian Wushuang’s Wavelight sword formation had just taken shape, it posed no threat to the emperor.

The emperor used his first axe, which was as powerful as the heaven-punishing sword of Thousand-edge Demon Monarch, and destroyed the Wavelight Sword Formation.

However, after 30 years, the emperor had to use his third axe to destroy the same Wavelight sword formation.

The sword formation was much stronger than it had been 30 years ago.

“With the help of Blood Rain and Thousand-edge, my sword formation has improved tremendously. Now, if an ordinary third-level master is trapped in my sword formation, the only thing he can do is to use life-saving means to escape. Otherwise, he will be trapped in the sword formation forever. As for trying to break it by force…”

“Even Thousand-edge Demon Monarch, who was thought to be the best attacker in the ninth dark zone, couldn’t do it,” Jian Wushuang said with a smile.

The most powerful attack of Thousand-edge Demon Monarch was the blood-heaven sword, which was not as powerful as the second axe of Thousand-edge Demon Monarch. Naturally, it could not break Jian Wushuang’s Wavelight sword formation.

“Of course, the Wavelight Sword Formation is only a sword formation to trap the enemy. In terms of defensive skills, it is far inferior to my earth-protecting sword formation. That is the truly invincible sword formation,” Jian Wushuang said with a strange light in his eyes.

In the past 30 years, his two sword formations had made tremendous improvements.

Compared to the sword formation of Wavelight, the sword formation of Earth Guard had improved even more.

Although Jian Wushuang could only condense 52 layers of Earth Guard sword fields above the sword field of Earth Guard, the same amount of earth sword fields could be combined in different ways to form the sword formation of Earth Guard, its protective ability was much better than it was 30 years ago.

30 years ago, Thousand-edge Demon Monarch used his strongest trump card, the fourth axe, which could defeat his Earth Guard sword array head-on and injure him at the same time.

But now, if Thousand-edge Demon Monarch used the fourth axe again, Jian Wushuang could easily withstand it with the Earth Guard sword array. Even the fourth axe could not shake the array at all.

“With these two sword formations in hand, master, even if you don’t rely on the tokens of the disciples of the Red Cloud Lineage, you can definitely do whatever you want in the first level of Eternal Darkness Prison. Countless experts in the first level of Eternal Darkness Prison, even the ten Supreme Rulers, will probably pay a heavy price to hurt you. As for killing you, even if the ten Supreme Rulers risk half their lives, they may not be able to do it,” Blood Rain Demon Monarch said with a smile.

“It’s all thanks to your help over the past 30 years, especially you, Blood Rain,” Jian Wushuang said with a smile.

He knew very well that the great progress he had made in the past 30 years had something to do with Blood Rain Demon Monarch and Thousand-edge Demon Monarch.

“Master, your two sword formations have basically been perfected. Even I can’t find any principles in them in a short time. In the future, if you want to further improve your sword formations, you can only find them by fighting with different experts,” Blood Rain Demon Monarch said.

“Yes, I’m going to explore.” Jian Wushuang nodded slightly. “Blood Rain, Thousand-edge, I’m going to explore alone. As for the two of you, stay here and wait for me. When I plan to leave this Eternal Prison, I’ll come back here and take you with me.”

“Yes.” Blood Rain Demon Monarch and Thousand-edge Demon Monarch nodded respectfully.

Jian Wushuang immediately left alone.

After Jian Wushuang left, Blood Rain Demon Monarch and Thousand-edge Demon Monarch stood side by side with different expressions in their eyes.

“Thousand-edge, it seems that our luck isn’t too bad. At least this master of ours is quite polite to us,” Blood Rain Demon Monarch said with a smile.

“Well, we both had no choice but to submit to him and even let him leave a mark in the soul origin. We thought that we would be miserable for the next 100,000 years, but now it seems that it’s not that bad. At least this master of ours isn’t an evil person. He also treats us as human beings.” Thousand-edge Demon Monarch nodded.

The two of them had lived in the Eternal Dark Prison for more than 100 chaos cycles and had seen too much of the coldness and darkness of human nature.

They had thought that after submitting to Blood Sword Master, she would make excessive demands on them. She would not even treat them as human beings and would casually order and scold them.

For example, Blood Rain Demon Monarch was extremely beautiful and enchanting. She was even ready to give her body to Jian Wushuang for fun.

But what happened?

In the past 30 years, Jian Wushuang only asked them to help him improve his sword formation. He did not ask for anything else.

Obviously, their master was a kind one.