At this moment, Han Li did not immediately begin cultivating. Instead, he first placed the precious treasures and materials he had obtained from Gui Lingzi's cave mansion for sale in the Reincarnation Palace.

He did not have many Immortal Essence Stones on him at the moment and needed to quickly accumulate some for future use.

Fortunately, he had obtained these materials from Gui Lingzi's cave mansion and did not have to worry about Immortal Essence Stone expenses for the time being.

After completing these trivial matters, Han Li sat down with his eyes closed, circulated the Great Five Elements Illusory World Divine Art, and began to cultivate, attacking the remaining Immortal Apertures.

"Huh!"

Just as Han Li began attacking the acupoints, he suddenly felt a movement in his heart and opened his eyes.

The attack on the Immortal Apertures was extraordinarily smooth, without any hindrance at all, and the feeling was completely different from when he had opened the Immortal Apertures before.

At this rate, it would only take a few years to open an Immortal Aperture, which was almost negligible in this time difference space.

"Could it be related to the fact that I activated my Evil Corpse, and the remaining Immortal Apertures are already in a half-open, half-closed state?" Han Li wondered and speculated.

However, he quickly stopped thinking about these things and concentrated on attacking the Immortal Apertures.

In the blink of an eye, more than ten years passed, and a golden light flashed on Han Li's shoulder as an Immortal Aperture was suddenly opened.

He was first happy in his heart, but the next moment his brow furrowed again.

As the Immortal Aperture opened, and his strength increased slightly, the power of the Evil Corpse sealed in his mind also increased a little.

The Isolation Rune chains on the Evil Corpse seemed to have been pried open a little, and the baleful aura surrounding him also increased.

"Hehe, there's no need to struggle. The more your power increases, the stronger I will become. Sooner or later, I will completely break free from this seal, and then your body will be mine!" The Evil Corpse's grim laughter echoed in Han Li's mind.

Han Li ignored the Evil Corpse's clamor and, after pondering for a moment, closed his eyes again and continued to attack the Immortal Apertures.

Time passed little by little, and thirty thousand years flashed by.

Han Li's entire body was surrounded by golden light, densely covered with golden spots, reaching as many as eight hundred and thirty-nine.

His aura had also increased almost twice, comparable to those in the mid-stage of Grand Luo, such as Myriad Dharma Immortal and Gui Lingzi.

However, the fierce baleful aura around Han Li had also become much thicker, and his glabella was surrounded by black energy, faintly condensing into a peculiar rune.

These runes looked like a ferocious face, with black light flickering on it, as if it would drill out from Han Li's glabella at any moment.

The golden light on Han Li's body flashed and retracted as he opened his eyes.

At this moment, his eyes flickered with streaks of blood, almost occupying half of his pupils, and his dark red pupils revealed a hint of madness, but his normal eyes were calm, looking extremely contradictory.

Han Li looked at the golden spots flashing on his body, and a trace of joy flashed across his face.

This time, opening the Immortal Apertures was smoother than he had imagined. In just over ten thousand years, all the remaining Immortal Apertures for advancing to the mid-stage of Grand Luo had been opened, leaving only the last Immortal Aperture untouched.

He was not yet ready to sever the corpse.

However, he could no longer delay. He was now generating evil thoughts, and the Evil Corpse's wild laughter was constantly echoing in his mind.

If his divine soul were not strong and his mind firm, he would have been unable to endure it.

Jin Tong and Ti Hun sensed Han Li's awakening and also stopped cultivating.

This thirty thousand years of closed-door cultivation was not long for their current cultivation levels. In addition, they had been concerned about Han Li's safety, so their cultivation was inevitably distracted. Therefore, although their cultivation had improved to varying degrees, it was not significant.

"Uncle, are you alright? These years, as your Immortal Apertures have increased, it seems... it seems..." Jin Tong looked at Han Li's half-red pupils and the soaring baleful aura surrounding him, and asked with some concern.

"I can still hold on, don't worry," Han Li said.

"Master, you have already opened the remaining Immortal Apertures. Are you going to start severing the corpse next?" Ti Hun looked at the spots of light on Han Li's body and asked.

"Sort of, but before that, I need to make some preparations."

Han Li said, and then fell silent, seeming to be thinking about something.

Ti Hun and Jin Tong exchanged a look and did not interrupt.

Han Li was silent for a moment, then made a hand seal and cast a spell, retracting his Spirit Domain, and looked at Jin Tong and Ti Hun, saying:

"Jin Tong, Ti Hun, I am going to start preparing to sever the corpse next. You two stay outside and protect me."

Jin Tong and Ti Hun nodded and flew outside.

After the two left, Han Li sat quietly for a moment, flipped his hand, took out the black mask of the Reincarnation Palace, put it on, and opened the transaction interface.

With a flick of his finger, a reward task appeared on it, the content of which was to seek the method or experience of severing the Evil Corpse in the early stage of Grand Luo realm.

This was a task he had posted in the Reincarnation Palace during his closed-door cultivation.

The task promised extremely high Immortal Essence Stone rewards, as well as various treasures, including Dao Pills, various supernatural secret techniques, and even the Five Thunder Orthodox Divine Scripture.

Although Han Li had promised these extremely precious rewards, no one had inquired about it so far.

Seeing this scene, he sighed, but was not surprised.

Severing the corpse is the key for Grand Luo cultivators to advance. In the past, there were traces to follow when cultivators advanced to Golden Immortal, Grand Yi, and even Grand Luo, which were nothing more than changes in Immortal Spiritual Power, Divine Soul Power, and Laws Power.

As long as there were traces to follow, corresponding methods could be found to assist.

But severing the corpse is different, involving one's own obsessions, which are illusory and intangible, invisible and untouchable. In addition, Grand Luo cultivators are extremely rare, so it is extremely difficult to conclude a set of methods or effective experiences.

However, the True Immortal World has existed for countless years, and the major sects and forces have explored generation after generation, and have still explored some methods, which are also known as "Corpse Severing Arts."

These Corpse Severing Arts are extremely precious and are the true core of a sect. It is only natural that no one would take them out to exchange.

Han Li posted this task with only one in ten thousand hopes. Now it seems that it is unrealistic to find the method of severing the corpse in the Reincarnation Palace.

Now, the only method he can think of is one.

Han Li flipped his hand and took out an object, which was the Palm Heaven Bottle.

There was no other way. He could only risk consuming the threads of the Law of Time and try to travel back to the past again to see if he could ask Patriarch Mi Luo for advice.

Han Li circulated the Great Five Elements Illusory World Divine Art, urged the Palm Heaven Bottle, and at the same time called out to the Bottle Spirit.

But no matter how he called, the Bottle Spirit did not respond.

"What's going on?" Han Li frowned.

The last time he was at the Nine Yuan Temple, the Bottle Spirit had lost contact with him. Now that so long had passed, there was still no response.

He was unwilling and continued to call out to the Bottle Spirit, but there was still no response.

Han Li's heart slowly sank. Without the Bottle Spirit's help, it would be impossible to accurately travel back to the True Word Sect.

Without the help of Corpse Severing Arts, he could only rely on his own strength to forcibly sever the corpse, which would greatly reduce the chances of success.

At this moment, a white light flew in from the entrance of the Flower Branch Space. It was a sound transmission talisman.

Han Li was stunned and immediately grabbed it in the void, sucking the sound transmission talisman into his hand and crushing it.

The sound transmission talisman turned into a ball of white light, and Ti Hun's voice came from within the white light: "Master, a person named Liu Le'er has come to visit, saying that she is an old acquaintance of yours. Do you know such a person?"

"Le'er... let her enter the cave," Han Li's eyebrows moved, and he immediately said loudly.

"Yes." Ti Hun agreed, and the white light drifted away and disappeared.

Han Li stood up, calmed his thoughts, and flew out of the Flower Branch Space, arriving at the outer cave hall.

In the hall, besides Jin Tong and Ti Hun, there was also a green-robed girl, who was none other than Liu Le'er.

Liu Le'er's aura was surging, and her cultivation had improved a lot compared to the last time they met. Like him, she was faintly approaching the mid-stage of Grand Luo.

"Brother, Le'er has finally waited for you to come back. It's so good to see that you are safe and sound!" Liu Le'er was slightly stunned when she saw Han Li's current appearance, and then rushed over.

Before Han Li could say anything, he felt a delicate body rush into his arms.

In the next moment, he immediately felt two scorching gazes looking over, and couldn't help but reach out and touch his nose.

Jin Tong and Ti Hun then looked at each other and quietly left the hall, leaving the space here to Han Li and Liu Le'er.

"Le'er, how did you come here?" Han Li gently rubbed Liu Le'er's head and asked.

"I happened to be cultivating in the Eight Desolate Mountains. King Bai Ze told me you were here, so I came over immediately," Liu Le'er said with a smile.

Han Li felt a burst of warmth in his heart, and the evil thoughts tumbling in his mind seemed to be dispelled a little.

"Brother, now that you've come to the Barbarian Wastelands, don't leave. There are abundant cultivation resources here, and there are no people from the Heavenly Court, so no one will want to harm you," Liu Le'er said, looking at Han Li expectantly.

"Good Le'er, I appreciate your kindness, but I still have many things to deal with outside. I still can't stay in the Barbarian Wastelands for long this time, and I will have to leave again soon," Han Li said.

"Okay... I know that brother is a person who does great things, so I won't force you to stay, but you have to come back and see me often in the future," Liu Le'er's expression dimmed, but she quickly recovered and said with a smile.

"Okay, if I have time, I will definitely come to the Barbarian Wastelands more often," Han Li said.

He was also quite happy to see Liu Le'er. He asked about Liu Le'er's recent situation and learned that she, as well as other elites from various Barbarian Wasteland tribes, had once again gathered in the Eight Desolate Mountains to cultivate in a mysterious space arranged by Bai Ze and Yue Mian.

"Brother, what's wrong with your eyes? And why is there such a strong evil aura surrounding you?" Liu Le'er looked at Han Li and asked with concern.

"I am currently trying to sever my Evil Corpse and attempt to advance to the mid-stage of Grand Luo realm. As a result, something went wrong, and I am entangled by some evil thoughts. Don't worry, it will be fine when I completely sever the Evil Corpse," Han Li said lightly, not wanting Liu Le'er to worry about him.

"Sever the Evil Corpse? Your cultivation is improving so quickly, but I heard King Bai Ze say that if your cultivation improves too quickly, your understanding of each realm will not be enough, which is not conducive to subsequent cultivation. Especially after advancing to the Grand Luo realm, you must carefully understand the improvement of each Immortal Aperture, otherwise you will not be able to successfully sever the corpse and advance," Liu Le'er said.

"That's right," Han Li nodded in agreement.

"I remember that you have always cultivated alone, without any sect inheritance. Do you have a suitable 'Corpse Severing Art' to help you sever the corpse this time?" Liu Le'er hesitated for a moment and asked.