Here's a translation of the provided text, aiming for clarity and flow:
Qin An Yu lay in the stone trough, soaking in the thick medicinal concoction, gazing at the sword embryo resting on the edge of the trough. He once again calmed his mind to reflect on his past and future.
He had always considered himself dashing and open-minded, with countless friends. Yet, he never expected to be so targeted during his divine tribulation: assassins from the Divine Realm, "friends" ganging up to block and kill him, leaving him surrounded by enemies. Although his family had a strong background and he possessed numerous techniques, he still fought to the death, heavily wounding one god, annihilating another, and forcing one "friend" to flee. However, the lightning tribulation wasn't over, and his primordial spirit suffered severe damage, making success impossible. Faced with relentless pursuit, he could only fight desperately, carving out a bloody path. Unable to shake off his pursuers, he resorted to a risky act of self-disintegration.
He didn't know what he was thinking at the time, but he grabbed this sword embryo and traveled through various realms. His tribulation, fierce and relentless, knew he hadn't completely fallen, so it pursued him, tearing through each realm. This could be called fortunate, or perhaps unfortunate.
Fortunate because the Clumsy Sword (Chuyết Kiếm) burrowed into the Cliff of Despair and happened to encounter Qin An Yu, who had also been knocked into it. Sensing he could no longer withstand the tribulation lightning, he entered Qin An Yu's Soul Sea. It was then he realized Qin An Yu was near death, his soul scattering. Unexpectedly, after his own soul entered, the scattering soul immediately stopped and even counterattacked, trying to seize control of the Soul Sea. However, the difference in strength was too obvious, and the Immortal Emperor eventually devoured it, initiating a reincarnation process through possession.
Unfortunate because this Qin An Yu possessed the most clumsy physique (vụng thể) in the cultivation world, a physique that left cultivators helpless. He originally wanted to leave, but the tribulation lightning outside persisted. Having already devoured more than half, he truly lacked the ability to leave and continue his journey. He could only remain within, achieving complete fusion amidst the intertwining lightning. What he didn't expect was that although Qin An Yu's cultivation level was extremely low, he harbored an extremely strong obsession. Knowing that he was an Immortal Emperor, Qin An Yu incessantly urged him to seek revenge. After a good deal of communication, he promised to heal his injuries first before seeking revenge, which finally calmed the agitation.
What also puzzled him was this heavily damaged sword embryo. He remembered that during his counterattack, he only heavily wounded that god, not killing him. Yet, this sword embryo, which he had sent flying, didn't return to that god but instead flew downwards into the lower realms. This was inexplicable. In such a major battle, everyone used their life-bound weapons. As long as the owner wasn't dead, they would automatically return. Even if the owner fell, the weapons would seek revenge or flee. None of these situations occurred with this sword embryo.
He didn't know if the continuous lightning strikes were bombarding his Immortal Emperor soul or this sword embryo. In any case, they were treated equally, both being struck. After being pursued and bombarded through several planes, his divine soul attached itself to this sword embryo. During the process of traveling through an unknown number of realms, the tribulation lightning continued to pursue and bombard them. His divine soul became weaker and weaker, but this severely damaged sword embryo remained completely unharmed... showing no further signs of deterioration.
Upon entering the Cliff of Despair, the sword embryo pierced the thigh of the near-death Qin An Yu. His soul also entered Qin An Yu's Soul Sea, finally falling to the bottom of the abyssal chasm. After he entered Qin An Yu's Soul Sea, under several days of continuous lightning bombardment, this sword embryo surprisingly recognized Qin An Yu as its master. It was then he learned its name: "Clumsy Sword."
A clumsy physique paired with a Clumsy Sword—it couldn't be more ironic.
In the following days, he learned that due to his extremely low cultivation level, he couldn't completely control the Clumsy Sword. The functions it displayed were only two: first, he could mentally adjust its weight, from a minimum of 50 jin (catty) to a maximum of 50,000 jin, increasing in increments of 50 jin; second, it contained three streaks of lightning sword intent, capable of killing cultivators at the Nascent Soul stage. These three streaks of sword intent were also the culprits behind his escape through countless realms. Originally, they could kill lower-tier gods, but after being struck by heavenly lightning, they could now only kill Nascent Soul cultivators.
It was strange, however, that the continuous lightning bombardment didn't destroy his body. Instead, his bones healed, and his body gradually recovered. Three days later, he could stand and walk amidst the lightning. Finally, he discovered this secret realm, where the lightning continued to strike as if venting its dissatisfaction.
"It's truly a coexistence of fortune and misfortune. A clumsy physique makes cultivation difficult, but then there's the Clumsy Sword as a tool. I've encountered all these things recently, lacking both strength and influence, yet I have three streaks of lightning sword intent."
"What's done is done. Since I can't leave this body, I'll accept everything."
The Immortal Emperor then realized that the "clumsy physique" mentioned by this boy referred to the original body, which was considered the most difficult to cultivate among cultivators. "It seems that cultivating this 'clumsy physique' will be a good way to test my power. How about it, Immortal Emperor?"
"Ah, the Immortal Emperor family has always been powerful. There are no friends or enemies in the immortal realm, only interests. As for those who were targeted by them, if they didn't have strong protectors, they wouldn't have been able to escape. If you are a fake Immortal Emperor from the lower realms, it makes sense that you have so many enemies. How can the Immortal Emperor family be so easily targeted, let alone killed by those so-called 'friends'?"
"If those guys are still around... I'll take care of them quickly when I return to the Immortal Realm. This body... it's really the most difficult to cultivate. Even with my Immortal Emperor's talent, it's still hard. But I'll endure it. I'll make this body an achievement that astonishes the world!"
"First, cultivate for a hundred years, then after reaching the Nascent Soul stage, I'll go back. This body... it can be called a 'Heavenly Tribulation Physique.' It's not a common physique, but every time there's a tribulation, it experiences a baptism. This is another reason why it's difficult for the Immortal Emperor to leave."
"I need to cultivate for a hundred years now. It's a long time. I wonder if I'll go crazy from boredom."
After a long and painful period of being immersed in the medicinal solution, Qin An Yu woke up. He felt a power he had never possessed before. He tried to pinch himself, but there was no pain. He pinched again, still no pain. He touched himself again and again, but there was no sensation. He tried to move, but his limbs felt numb, as if they didn't belong to him. He was so startled he couldn't help but cry out.
A thick layer of muddy gray water floated on the surface of the stone trough. She asked, "What is this? Is this the bathwater that young master uses?"
Qin An Yu immediately said, "This is the dirty water from my body. You can use it to wash your clothes."
She looked at her body, then changed into a new set of clothes. After she finished, she approached the stone trough. "What are you doing, big master?"
As she was about to step out the door, she stopped. Qin An Yu was standing on the giant sword, bare-chested. Sweat drenched his clothes and the sword. She watched him move from the stone trough, and as he stood on the sword, his movements were light and graceful, unlike the clumsy actions she had seen him perform before. She paused, and then she watched him repeat the movements with the sword several times.
Then she carefully walked to the back of the cave and took out some simple tools: a few pieces of jade, some rice, and some firewood. She started a fire and cooked rice. While she was cooking, she noticed Qin An Yu, who had been practicing with the sword, suddenly stopping. He extended his hand, pushing himself up with his elbow, resting his head on his hand as he watched her.
The rice was cooked, and a fragrant aroma filled the air. He made a hand sign, and the sword returned to his hand. He then walked over to her. The lightning still poured down outside, always following him. "What is that?"
She looked up at him, then lowered her head, pondering. He smiled, "Big master, are you learning swordplay?"
"You're quite skilled at swordplay now, aren't you? What kind of unique technique is this?"
She looked at him and smiled. "Big master is also a weapon refiner? This sword embryo... this sword embryo has a spirit. How can it have a spirit?"
"I don't know yet. But this sword embryo... it looks like it's going to become a real treasure. It's quite strange."
"This 'clumsy physique' is really very... cumbersome."
"I have something important to discuss with you. If you can help me, I will consider you a good friend."
"You want to help me cultivate? How can a clumsy physique cultivate? I have no talent at all."
"This is not a cultivation method, but a way to cultivate the clumsy physique." The Immortal Emperor continued, "The original Immortal Emperor's body was quite good, but the current body is very bad. So, it's about cultivation. This Immortal Emperor is not just a casual cultivator. I will make this 'clumsy physique' become an invincible physique!"
"I've been in this body for three years. I've tried many things. I can only walk now, but I can't run. It's too cumbersome."
"What about those people who attacked you in the Immortal Realm? What about your family? Don't they have some kind of protection?"
"If I had the strength of the Immortal Emperor, I would have killed them all without leaving a single one alive!"
"Ah, you still have to go back to the Immortal Realm. This is going to be trouble. Those guys are already there. You have to hurry back."
"..."
"You still have to cultivate for ten years to be able to use the Clumsy Sword. It's still too slow."
"I have two methods now. One is called the Great Yang Body Forging Method, and the other is the Five Elements Body Forging Method. These two methods are not cultivation methods, but body forging methods. They can make your clumsy physique stronger. There are also many techniques for you to cultivate. You can choose any of them."
"How long will it take for me to use the Clumsy Sword?"
"It will take about three years. Maybe faster."
"Okay, let's eat."