The Three Iron Laws of Possession

Doctor Mo did not enjoy his victory for long. The power of the Soul Curse soon manifested itself, aging him at a terrifying rate—nearly a year for every single day that passed.

Terrified, he tried every method he could think of to halt the诡异 phenomenon, but to little effect. If this continued, he would naturally wither away and die like an old man, his life force exhausted. Fortunately for him, Yu Zitong’s primordial soul was faring even worse.

Having resided within Doctor Mo’s body for some time, Yu Zitong’s soul had begun to experience a phenomenon called "assimilation."

"Assimilation" was a passive form of possession. It occurred when an external primordial soul lingered too long inside another person's body, gradually being influenced by the host's soul on an unconscious level. The two souls would interact and merge, but in the end, only one consciousness could survive. It was a凶恶 phenomenon.

Seeing this, Yu Zitong was left with no choice but to consider an主动 possession. His reluctance was not born from any kindness, but from his fear of the legendary Three Iron Laws of Possession in the cultivation world:

First, a cultivator could not possess a mortal. If they attempted to, the mortal’s body would be unable to withstand the process and would collapse.

Second, only a cultivator with higher magic power could successfully possess one with lower power. The greater the gap in power, the safer the process.

Third, regardless of their cultivation level, a cultivator could only attempt possession once in their lifetime. Any second attempt would cause their primordial soul to vanish for no reason.

These three iron laws had been tested countless times and had never been broken. They restricted countless villains who sought to use possession to stir up trouble, and opportunists who tried to use the technique to escape calamity. Heaven had placed these warnings on such an逆天 act, preventing the world from falling into chaos through its misuse.

If Doctor Mo had been a cultivator, Yu Zitong would not have been afraid. He would have fought tooth and nail with him for the body. But Doctor Mo was merely a mortal, without a shred of magic power. His body could not withstand the possession process at all; it would probably collapse halfway through the attempt.

Furthermore, even if Yu Zitong found another person’s body to hide in, he could not avoid the fate of assimilation. He would simply face the same dilemma again, and it would be even worse. His magic power would decrease sharply with each entry and exit of his soul, and he would soon be trapped inside someone else’s body, eventually being assimilated.

He had to remember that, having become a primordial soul, he had no physical body to sit and replenish his energy. The magic power he carried was used once and lost forever. It was also diminishing with the passage of time, and he did not know how much longer he could last.

Faced with the twin pressures of his soul having nowhere to hide once Doctor Mo’s body collapsed from the blood curse, and the danger of being assimilated by the host’s soul, the survival-driven Yu Zitong was forced to set aside their enmity. After much deliberation, he reluctantly made contact with Doctor Mo and told him the entire situation, including the利害关系.

At first, Doctor Mo was furious, but he soon recognized the great opportunity before him. Without a moment's hesitation, he drew up three articles of agreement with Yu Zitong and reached a deal, revealing his true nature as a ruthless leader.

First, Doctor Mo was to follow Yu Zitong’s instructions to control his own consciousness and avoid assimilating the other’s soul as much as possible. In return, Yu Zitong would teach him secret techniques to slow down his aging and grant him temporary access to magic power.

Second, Doctor Mo was to find a child with spiritual roots who could cultivate the Eternal Spring Art. He would teach the child to cultivate this technique, and when the time was right, Doctor Mo would use his temporarily acquired magic power to perform the possession and gain a new life.

Doctor Mo had initially wanted to cultivate the technique himself, but his attempts came to nothing, leading to ridicule from Yu Zitong. It was then he learned that those without spiritual roots could not cultivate magic power, and he was one of those ordinary people the cultivators called "those without roots."

Third, after a successful possession, the reborn Doctor Mo was to use the buffer period to help Yu Zitong find a suitable physical body and assist him in his own possession.

On the surface, these terms seemed more favorable to Doctor Mo. But this was unavoidable, as Yu Zitong was facing the immediate危机 of assimilation. Being in a disadvantageous position, he had to make some concessions. Whether or not he was actually losing out, only he knew.

During this process, Yu Zitong suggested that Doctor Mo seek help from his family’s hidden settlement. But the experienced Doctor Mo was not about to give him any leverage and refused unequivocally. This made Yu Zitong gnash his teeth in hatred for the rest of his days.

What happened next was nothing worth mentioning. Doctor Mo couldn't find a suitable candidate in the first few years, so he dejectedly joined the Seven Mysteries Sect. He then unexpectedly took on Han Li and taught him the Eternal Spring Art, and the rest was much the same as what Doctor Mo had told him, events that Han Li himself had experienced.

After listening to all of this, Han Li let out a long breath. Most of the doubts in his mind had been resolved.

Seeing that Yu Zitong had stopped and was no longer continuing his story, Han Li’s expression darkened as he spoke coldly:

"You haven't told me why Doctor Mo died!"

"There's nothing to explain. It was simply that Doctor Mo misjudged the progress of your Eternal Spring Art. His magic power was far inferior to yours, so instead of successfully possessing you, he was devoured instead." Yu Zitong’s voice hesitated for a moment before he finally told the truth.

"So the yellow light orb that entered my body first was Doctor Mo's primordial soul, and the second, green one, was you." Han Li said lightly.

"Well... at the time, I really thought that you and Doctor Mo had destroyed each other! I just wanted to borrow your body so it wouldn't go to waste." He sounded a bit embarrassed.

"Hmph! I doubt you 'thought' anything of the sort. You planned it that way."

"Yu Zitong, when you first taught Doctor Mo the possession technique, you had no good intentions. You deliberately failed to mention that success depended on the depth of one's magic power."

"According to your original design, with Doctor Mo's use of the self-mutilating Soul Devouring Art and my fourth-layer Eternal Spring Art, our magic power levels were roughly equal. Once the possession began, you expected us to kill each other. Then you, the third party, would profit from the conflict, taking the opportunity to seize my body and succeed in your possession. Am I right, great cultivator Yu?" Han Li calmly laid out his judgment in one breath.

Yu Zitong was silent for a long time. Finally, he let out a sigh, sounding somewhat dejected as he did not refute.

"When I praised you earlier, it was just empty talk. But now, I truly mean it. You are very clever. You have surpassed your master and are now even above that old fox, Mo Juren."

"Your guess is very accurate. I did design all of this. But I never expected your cultivation talent to be so good. You reached the sixth layer of the Eternal Spring Art in such a short time, only one layer below me. Not only did you effortlessly devour Doctor Mo’s primordial soul, but even my own severely weakened cultivator's soul was no match for you. I ended up losing even more of my vitality."

However, his tone suddenly shifted, becoming arrogant:

"Mo Juren was nothing but a mundane mortal. And he dared to dream of standing as an equal with us cultivators, calling us brothers? Was he worthy?"

"Even more unforgivable is that he used despicable means to destroy my physical body and still wanted to tread the path of immortality. A fool's dream!" Yu Zitong gnashed his teeth, revealing a long-held hatred for Doctor Mo, now displayed without restraint.

"But with you, it's different. You were born with spiritual roots and have exceptional talent. It would be a great pity for you to remain in the mortal world. If you are willing to help me find a suitable physical body and assist me in my possession, I am willing to be your guide and introduce you to an elder of my family, who will take you as an apprentice. What do you think?"