All conditions, all prerequisites, were insignificant little details before the Placement Slot!
Back in the day.
The reason he enjoyed practicing incomplete or flawed techniques and learning extremely difficult secret arts wasn't because of a particular preference, but because the easy ones weren't necessarily weak, while the difficult ones were definitely powerful and unique!
With the help of the Placement Slot, he was essentially taking a shortcut.
**[Placement Slot 6: Yellow Springs Great Hand Seal (Third Rank / Divine Ability)]**
**「Yellow Springs Great Hand Seal (0/100): Twelve practice sessions per day, one hundred years to reach perfection.」**
"One feedback cycle every two hours..."
Wang Yu looked at the hundred-year requirement and wasn't surprised. He was only at the Foundation Establishment stage now, and the Placement Slot made its judgment based on a template of himself.
It meant that if he practiced tirelessly for a hundred years *in his current state*, he'd have a chance to reach the perfection stage of this divine ability. But this wasn't set in stone.
As he grew stronger, the template based on him within the Placement Slot would also strengthen. When he condensed his Golden Core, the requirements for these third-rank divine abilities would decrease to a certain extent.
Just like if he placed a first-grade, low-tier technique now, it might reach perfection in just over ten days. That was the difference and benefit brought by his realm.
The more things he learned, the more his acquired comprehension grew. This was a kind of high-level comprehension formed by experience, knowledge, and effort.
Apart from lacking the instinctual flashes of inspiration, the gap with innate comprehension wasn't actually that great!
He remembered that after every technique, cultivation method, secret art... even odd arts and bone arts reached perfection, there would be runes that faded into the depths of his Dantian Qi Sea.
Perhaps this was some kind of evidence of his growing comprehension.
Whether there were more benefits, he hadn't fully realized or felt yet.
For now, Wang Yu cultivated quietly and waited. After two hours, the first wave of feedback finally arrived!
The Yellow Springs power fed back by the Placement Slot was clearly refined. The amount wasn't large, but it gave Wang Yu a feeling of fundamental attraction.
Cold, cool... like the Netherworld Demon Serpent.
No, stronger than the Netherworld Demon Serpent by a level. The Yellow Springs power gave Wang Yu the sensation of an extreme cold that froze everything, within which a Yin-Underworld attribute of exceptionally high essence was concealed.
It perfectly matched the path he was currently on.
—Yin, Ice!
He even had the intuition that the Yellow Springs Temple's cultivation techniques might be more suitable for him.
These fed-back wisps of Yellow Springs power occupied a corner of his true essence lake, dyeing his bluish-black true essence into a turbid yellow.
Although only a portion, he felt the *quality* of his true essence had improved!
Soon after.
Wang Yu emerged from his contemplation, murmuring to himself, "Cultivating the Yellow Springs Great Hand Seal actually has the effect of purifying true essence..."
Moreover, he couldn't help but observe his own hands.
The portion of his Yin-Cold true essence dyed turbid yellow automatically gathered at the location of his hands, tempering his muscles, bones, and meridians, greatly widening the capacity of the meridians in his hands.
It also left behind runes representing the Yellow Springs on the inner walls of the meridians.
This was the cultivation process of the Yellow Springs Great Hand Seal.
When the time came that his hands were fully covered with Yellow Springs runes, it would mean this divine ability had reached minor mastery. When they completely penetrated the muscles and entered the bone marrow, that would be great mastery!
As for the turbid yellow true essence within his Qi Sea, after being consumed, it showed no signs of recovering on its own. The true essence restored by circulating his cultivation technique was only the original Yin-Cold true essence.
He more or less understood the details of this divine ability.
"I can't help but feel it's very suitable as a life-bound divine ability, but... I'll wait and see a bit more."
The Yellow Springs Great Hand Seal possessed the characteristics of Yellow Springs water, capable of washing away all things in the world. In simpler terms, it had a strong ability to break techniques!
One slap could disperse an enemy's techniques or divine abilities back into their most primitive spiritual energy. Against magic treasures, it could also suppress the connection between the enemy and their treasure.
Cultivated to a profound level, it could degrade the rank of an enemy's magic treasure by washing over it.
Its mighty reputation across the Scarlet Kite and Great Lake regions wasn't without reason. Cultivators who had encountered it all said it was a pain in the ass; this thing could bankrupt you.
Only equally profound and powerful inheritances could resist it.
Counting the **[Lesser Asura Slaughter Fist]**, this was the second divine ability technique he had mastered. Not a single one was from the Reverse Spirit Blood Sect's inheritances. Quite strange.
Once he cultivated these two divine abilities to the minor mastery stage.
They could replace the Mysterious Yin Hand and the Ice Wheel Technique, becoming his new formidable trump cards. In the cultivation world, once a trump card was used, it was best to upgrade it a level immediately.
Information was an extremely important part of the game.
After completing his comprehension, Wang Yu told no one and continued descending to the second level of the cultivation chamber to contemplate the Slaughter Intent Stone Slabs.
As the days passed.
Han Jia's side frequently sent people to deliver the materials he had ordered. And so... this cultivation chamber expanded once again. Following the Slaughter Intent cultivation room and the Insect Room, a third Corpse Refinement Room was added!
If he was going to do it, he'd do it to the best standard. Wang Yu directly constructed two blood pools according to the highest specifications in the Yin Essence Corpse Refining Technique—one purely Yin, one purely Yang—laid out according to the positions of the Taiji and Two Forms.
They were specifically for nurturing and refining the Demon Corpse and the Thunder Corpse. Added to the Moon Yin Corpse Fiend, with three exotic variant zombies in hand, even True Disciple Jiang from Heavenly Corpse Peak would drool with envy seeing him.
The construction of the blood pools subtly incorporated Geomancy and Odd Arts.
Don't think the name sounds ordinary; the principles behind it were vast. It was an odd art for observing the veins and arteries of heaven and earth, and truly few people knew it.
Moreover, it was closely related to formations.
Formation masters were divided into the paths of Heaven, Earth, and Man—similar to how alchemy had distinctions like water and fire refinement methods. Heaven Formation Masters controlled celestial timing, knew celestial phenomena, could shift stars and change constellations, and could draw upon the power of the celestial sphere's stars.
Earth Formation Masters controlled earth veins, pursued the myriad spirits, could move mountains and fill seas, and could obtain the power of mountains, rivers, lakes, and seas!
Man Formation Masters were ordinary. The current simple modes like formation banners and formation disks... these were pioneered by them, with plenty of room for progress.
The three paths of formation masters weren't sequential, nor were they inheritances where learning one prevented learning another. It meant you could simultaneously be a "Heaven, Earth, and Man Formation Master."
Geomancy and Odd Arts were a supreme skill created by Earth Formation Masters, useful in almost everything one did.
Wang Yu's arrangement of this **[Yin-Yang Clash Corpse Refinement Formation]** was a product of following the book; he didn't understand the principles, judgments, logic...
Its effects were also relatively ordinary: increasing the speed of corpse refinement.
He had some interest in formations personally, but his interest in Geomancy and Odd Arts was greater. For a cultivator, the auxiliary functions of this skill were absolutely first-rate.
If it weren't for the limited slots in the Placement Slot, he might have learned it. Perhaps there would be an opportunity in the future.
Wang Yu remembered that Gu Zhengshun's martial grandmaster, **[Earth Yinzi]**, possessed the inheritance of an Earth Formation Master and would certainly know a complete set of Geomancy and Odd Arts. Just the various recorded strange formations of heaven and earth within it would be a fortune in itself.
It took him the better part of a year to settle all the corpse refinement preparations.
The Moon Yin Corpse Fiend and its Nurturing Coffin were also tossed here to recover. The Corpse Fiend was quite close to advancing to the mid-third rank, but Wang Yu wasn't confident enough to let it advance.
If it rebelled, he'd be in a real pickle.
When he had used up most of the **[Purple Lightning Melding Gold Liquid]** and his Dragon Spine had accumulated over fourteen hundred drops of essence blood, the new body-tempering treasure also arrived.
At the cost of 980,000 spirit stones, Han Jia personally delivered the third-grade spiritual material—**[Ten-Thousand Poison Marrow]**, a piece the size of a basketball, nearly five tons heavy!
This thing had an incredibly high lethality. It was a metal-attribute virulent poison, yet it possessed the effect of activating the physical body—simply put, it enhanced vitality, immunity, and so on.
It could greatly enhance physical recovery and confer immunity to plagues and common toxins, but one must survive the erosion of the **[Ten-Thousand Poison Marrow]**.
This was almost tailor-made for Wang Yu as a body-tempering spiritual material. He had the Immaculate Jade Toad; if he really couldn't hold on, he could let it take a sip, ensuring survival.
It would also satisfy its demand for toxins.
Killing two birds with one stone, maximizing value.
Thus.
Wang Yu's focus shifted slightly. He practically gave up spending time on alchemy and technique practice, relying purely on the Placement Slot for improvement.
The time spent on cultivation and body-tempering increased further.
Cultivation Chamber.
Wang Yu sat cross-legged before the **[Ten-Thousand Poison Marrow]**, using his palm as a knife to slice off a piece the size of a fingernail, holding it in his hand.
The Immaculate Jade Toad lay on his leg watching, its eyes fixed on Wang Yu's hand, which was rapidly turning black. Terrifying toxins spread swiftly along his meridians.
To allow the Immaculate Jade Toad to observe conveniently, he was almost completely naked, only covered by a white cloth for modesty. As blackened meridians spread across his entire body...
Wang Yu visibly trembled. Both his blood qi and the toxins evaporated simultaneously, with purplish-black blood droplets oozing from his pores.
As they slid over his skin, they left behind more traces of toxin.
The Immaculate Jade Toad hurriedly opened its mouth and inhaled, quite enjoying swallowing them. Its jade-white body turned black for an instant before immediately returning to normal.
It completely followed the developmental pattern of an insect: every time its body size increased, it needed to form a cocoon, turning its body into a liquid state and undergoing metamorphosis again.
This was perhaps why it was considered an exotic insect!
This state of being eroded by toxins lasted a full half-month. Just as Wang Yu's breath was as faint as a thread, the Immaculate Jade Toad bit his wrist.
It swallowed all the toxins into its body. The small jade toad immediately swelled, turning black. By the time Wang Yu awoke, it had simultaneously transformed into an insect cocoon.
This made Wang Yu immediately sigh in relief.
"Fortunately, I estimated correctly, just at the little guy's limit. This Ten-Thousand Poison Marrow should at least allow the Immaculate Jade Toad to leave its juvenile state and grow to maturity."
And freed from the influence of the toxins, Wang Yu's body was rapidly recovering, as if having undergone destruction and rebirth. All his physical indicators experienced a surge.
The number of essence blood drops within his Dragon Spine skyrocketed to over two thousand five hundred, increasing by over eleven hundred drops in one go. The effect was terrifyingly powerful!
"This first time the effect is extremely potent. Next, I need to wait for my body to recover completely. Probably can only use it once a year. The next time will require a larger dose... perhaps a fist-sized piece would be about right."
Wang Yu murmured to himself, quickly making multiple judgments.
He estimated he could use the current piece of Ten-Thousand Poison Marrow another three to four times before it was exhausted. But the boost it brought was truly fierce, and it would also greatly save his time.
The expenditure of nearly a million spirit stones was also considered worthwhile, enough to boost him to the level of seven to eight thousand essence blood drops. By then, he'd be just a step away from the peak of the second rank.
The commissions from Han Jia's side were still ongoing. He also needed body-tempering related Core Formation spiritual materials, conveniently to exchange for with another top-grade Core Formation spiritual material.
Simply perfect.
**(End of Chapter)**