Lu Fuyue's face turned pale. "Master, what are you doing?"

The Ghost Emperor chuckled, "I didn't do much. My remnant soul is about to disappear. Rather than waste it, I might as well let you have it."

"Little girl, you must cultivate diligently from now on."

And so, Lu Fuyue watched helplessly as the master she had just sworn allegiance to vanished into the world.

"Master..."

Time passed, and Lu Fuyue's spiritual energy had long since reached the critical point for a breakthrough, but she was not in a hurry to break through.

She has no shortage of spiritual energy, nor does she lack time for the time being. The only thing she lacks now is to consolidate her foundation and then take advantage of the opportunities she has obtained this time to break through from the peak of the mid-stage Nascent Soul to the Out-of-Body stage in one fell swoop.

It was only after arriving in the Underworld that Lu Fuyue realized that her talent was perhaps one in ten thousand in the entire Qingyuan Continent.

However, her cultivation time was too short and her cultivation level was not high. If she encountered powerful beings whose cultivation level far exceeded hers, she would surely face a life-or-death situation.

Just like the Lord of the Underworld and the old woman she had encountered before.

She really didn't want to experience that feeling of having her life at the mercy of others again.

Therefore, without compromising her own foundation and principles, Lu Fuyue wanted to quickly increase her cultivation speed so that she could have the power to fight back as soon as possible and no longer be controlled by others.

However, breaking through several realms in succession relies not only on chance, but also on mastering subtle changes within oneself and seizing the right opportunity.

Her top priority now is to ensure that these breakthroughs do not negatively impact her foundation.

To achieve this, the spiritual energy in the dantian must be in a highly saturated state, then liquefy into spiritual liquid, and finally seize the opportunity to break through in one fell swoop.

As time passed, the spiritual energy in Lu Fuyue's dantian gradually approached saturation.

On the other side.

At the very top of the nine levels of hell, inside the royal palace.

After leaving Lu Fuyue's side, Jiang Xun personally guarded the exit. The guards around him changed batch after batch, but he remained motionless, standing there with his hands behind his back, his deep gaze fixed on the exit of the Nine Levels of Hell.

A high-level ghost cultivator knelt respectfully at Jiang Xun's feet and said worriedly, "Your Majesty, would you like to rest first? If Fairy Lu comes out, we will send someone to call you immediately."

Previously, the king's body was severely damaged in order to save Fairy Lu. Now, for her sake, he has expended a large amount of ghostly power to temporarily suppress three thousand fierce ghosts in the nine levels of hell, which has made his body increasingly weak.

Currently, Princess Siyou is in seclusion. If something were to happen to the King, the city of Zhongdu would be without a leader, which would be disastrous.

Jiang Xun said coldly, "No need, you can go down now."

He has to stay here so that if an accident happens down below, he can get there immediately and protect her. What will happen to her if he leaves?

Just then, a maidservant came up and bowed respectfully, saying, "Your Majesty, the one from the Northern Capital has arrived. He wishes to see you."

Jiang Xun paused, then turned to look at the maid. "Did he say anything?"

Although Luo Fei was one of the five Ghost Kings, their relationship had always been distant. Even when they met, they would only exchange a few words. Why would Luo Fei suddenly come to him?

Could it be... for the Netherworld Divine Fire?

Or is it that he came for that old woman from the River of Oblivion?

Both the former and the latter are somewhat troublesome...

The maid hesitated for a moment before finally speaking: "Well, that person didn't say, but he asked me to tell you that his visit is related to... Fairy Lu."

Jiang Xun's aura suddenly turned cold, and his eyes darkened. He looked down at the maid with his hands behind his back and said, word by word, "Who do you think it's related to?"

The maid trembled and lowered her head in fear. "That person said... said it was related to Fairy Lu."

Jiang Xun sneered, his eyes growing colder, and suddenly flicked his sleeve. "He certainly knows how to threaten."

He turned his gaze to the ghost cultivators guarding the exit of the Ninth Level of Hell, "You all stay here and guard this place well. Do not let even a mosquito in. If there is any movement inside, notify me immediately."

The ghost cultivators knelt down in a dense mass, saying, "Yes, Your Majesty."

Inside the main hall.

Luo Fei sat in the head seat on the right, and A Luo sat beside him. Her bright and clear eyes looked around the hall with a hint of curiosity about being in an unfamiliar environment.

The king said, "The beauty in the painting should be here, but I can't see her."

Luo Fei picked up a cup of tea, took a sip, and seemed nonchalant, but in reality, his attention was focused on the people around him.

He hadn't originally planned to bring Luo Xiaobai along, but when she learned that he was there to see his sister, the little flirt got excited and insisted on coming along.

If he didn't give in, she would cry, which annoyed him so much that he eventually took the little vixen with him.

The maid who went to report has returned, followed by a tall and imposing man.

Alo gasped for breath, staring at the figure with astonishment in his eyes, unable to recover for a long time. He never expected that there would be a man in the underworld who looked just as good as his king.

Suddenly, she seemed to think of something, and her cheeks flushed slightly. If only she had a large group of such handsome men around her, her heart would pound just thinking about it.

Suddenly, a hand grabbed her by the back of the neck, and a sinister voice rang out, "Luo Xiaobai, shut your drool, don't embarrass this king."

Upon hearing this, A Luo panicked and hurriedly wiped her mouth with her hand, only to find nothing there. She instantly realized what had happened and turned to glare fiercely at Luo Fei, "You lied to me!"

Upon hearing this, Luo Fei's lips curled into a wicked smile. He loosened his grip, and A Luo almost fell to the ground before being pulled up again, thus preventing him from falling.

He raised an eyebrow and said calmly, "Who told you to embarrass yourself!"

Upon hearing this, tears streamed down A Luo's face. She pouted and looked at him with a wronged expression, then stomped her foot and ran out of the hall, shouting, "You big liar, I'm never talking to you again!"

He was speaking softly to her just a few days ago, but today he's already showing disdain for her.

Hmph, let's see what he does when she goes to her sister and complains first.

So only Jiang Xun and Luo Fei remained in the main hall, and the other maids were all called away.

Jiang Xun strode over and sat at the head of the table, coldly scrutinizing the people below him. "I wonder what business the Ghost King of the Northern City has here?"

Luo Fei smiled, "Jiang Xun, after all these years, you're still as heartless as ever."

Seeing Jiang Xun's displeasure, he changed the subject and stopped joking, "I heard that you have a female cultivator from the human race by your side?"

Jiang Xun's face darkened, and the veins on the back of his hand suddenly bulged. "What do you mean?"

"It's nothing special. That person looks somewhat like one of my relatives, so I came here specifically to verify it."

Jiang Xun sneered: "How could I not know that you have any relatives?"