The wind swept across the plains, over the hills, through the cities, and spread throughout the vast secret realm, spanning thirty thousand li.
In the space of an hour, over eighty-three thousand demon cultivators perished, all ground into dust by the gentle breeze, scattering into the heavens and earth of the secret realm!
Among them, seventy-three Mahayana realm cultivators were targeted and killed immediately; those attempting to break out of the secret realm were also prioritized for elimination; in the end, not a single demon cultivator escaped.
"Whew~ Using this domain to kill enemies is truly efficient, but also truly exhausting!"
Yang Hong let out a sigh, collapsing onto the ground, indifferent to the fragments of demon cultivator corpses mixed beneath him.
His magical power was completely depleted, and his divine sense power was less than ten percent. At this moment, if a Foundation Establishment cultivator were to appear with a weapon capable of piercing his physical defenses, they could kill him.
Of course, that was assuming they could breach his body. His physical defense was comparable to the ninth tier of body cultivators!
Magical artifacts below the seventh tier couldn't even break his skin.
After an hour of killing, Yang Hong rested for three hours before recovering some of his magical power. He immediately retrieved Hua Xinlei, Yu Kewei, and Xiao Kui, along with other tree demons cultivated in the Ten Thousand Monster Sea Region, from the scale space on the back of his hand, where they had reverted to their tree forms.
He released thirty of them in the first batch.
"Master, you are very weak now. Let this humble demon heal you."
"I also know healing spells, I'll help too."
"I know restoration spells, and I..."
The flower demons and tree demons, even Hua Xinlei, knew a wood-element healing technique. Seeing Yang Hong's unstable aura, they quickly used their spells to heal him and help him recover.
He didn't stop them, standing still as streams of wood-element restorative spells washed over him, washing away his fatigue and rapidly restoring his magical power.
They continued healing him for an hour, and only when Yang Hong had recovered twenty percent of his magical power did he ask them to stop.
"Alright, plant these [Silver Moon Grass] and [Sunrise Fruit Trees] according to the Yin-Yang Two Forms formation. Once I've purified the demonic energy in this secret realm, I will help you with cultivation insights."
"Okay~ We're experts at planting spiritual plants."
Xiao Kui, Xiao Pu, and the other young demons, who had grown into young women, were still as lively as ever. They eagerly took the ninth-tier spiritual plants Yang Hong produced and quickly dispersed to begin planting.
As beings who originated from spiritual plants, they had a natural advantage in cultivating spiritual plant techniques, and each demon possessed proficient spiritual plant spells.
After releasing all two thousand ninth-grade spiritual plants and eighteen thousand eighth-grade spiritual plants, Yang Hong sat in place to recover his magical power.
While he could kill quickly, his recovery was not as swift. He spent a full five days to completely regain his magical power.
Of course, a significant reason for his slow recovery was the thick demonic energy within the secret realm, which severely limited his absorption of spiritual energy.
"Demonic energy is so annoying!"
Yang Hong, having fully recovered his magical power, did not feel as energetic as he did in the outside world. Instead, he felt a sense of mental fatigue.
"Yu Kewei, form teams amongst yourselves and plant yourselves in a Three Talents formation. I am going to begin purifying the demonic energy in this secret realm."
"Yes!"
Upon hearing Yang Hong's command, the thirty tree demons dispersed, paired up with each other, found suitable locations, and planted themselves. They then connected their magical power together.
Ten formations, radiating the artistic conception of heaven, earth, and man, protected them.
"Moonlight Jade Flowing Nectar~ Sunrise Creation Technique~"
With his cultivation having broken through to the ninth tier of the Mahayana realm, Yang Hong found it much easier to simultaneously cast two eighth-tier spiritual plant spells. Silver and purple lights accurately landed on the Silver Moon Grass and Sunrise Fruit Trees, respectively.
Yin energy, glowing with a silver-blue hue, slowly emanated from the Silver Moon Grass, while a faint golden Yang energy emerged from the Sunrise Fruit Trees. The Yin and Yang energies rose and began to circulate slowly, and one thousand Yin-Yang formation diagrams began to operate throughout the secret realm.
At the center of the Yin-Yang formation diagrams, a vortex slowly formed in the Tai Chi position. The demonic energy permeating the entire secret realm, drawn by the formation's vortex, rapidly entered the Tai Chi position.
After being refined and transformed by the Yin-Yang Two Forms formation, purer Yin and Yang spiritual energy was emitted from the Yin and Yang positions, further accelerating the operation of the formation diagrams.
However, the sheer volume of demonic energy in this secret realm was immense. The transformation took forty days to completely convert all the demonic energy.
It wasn't that he couldn't use demonic energy for insights for Yu Kewei and the others. It was just that if he did, it might cause unexpected issues during their ascension, potentially even leading them to ascend directly to the Demon Realm!
He intended for these spiritual plant and demon beasts to ascend to the Immortal Realm to help him work.
"Ding~ You provided 3000 days of cultivation to the ninth-grade spiritual plant Ironbark Tree, receiving a tenfold cultivation return, gaining 30 million days of cultivation."
"Ding~ You provided 3000 days of cultivation to the ninth-grade spiritual plant Jade Wood Flower Vine, receiving a tenfold cultivation return, gaining 30 million days of cultivation."
"Ding..."
In just one day, Yang Hong completed 30 insight sessions. The vast spiritual energy directly pushed his cultivation to the third layer of the Mahayana realm.
However, the consequence was naturally that his cultivation became unstable again. But it was not a major problem. It would only take him one day to fully cast [Moonlight Jade Flowing Nectar] and [Sunrise Creation Technique], combined with the rules of creation and time, to dissipate some of his magical power.
Then, after three more days of cultivation, he would achieve a stable cultivation at the peak of the first layer of the Mahayana realm.
Although it was a bit troublesome, the speed of his cultivation increase was already more than ten thousand times that of normal cultivators.
After one round of insights, Hua Xinlei and the other earth demons, who were originally stuck at the peak of the seventh tier of the Integration realm, successfully advanced to the eighth tier of the Tribulation Crossing realm.
This was the power of the [System]!
It not only rapidly increased Yang Hong's cultivation but also significantly sped up the quality and cultivation of spiritual plants.
Crack~ Crack~
The secret realm, spanning thirty thousand li, under Yang Hong's meddling, only lasted for ten rounds before its spatial stability began to falter.
"Yu Kewei, return to my scale space for now. This secret realm is about to shatter."
"Master, why don't we do one more round of insights? Our cultivation is about to break through to the seventh layer of the Tribulation Crossing realm, almost the late stage of the Tribulation Crossing realm."
Yu Kewei pleaded reluctantly, but Yang Hong resolutely refused.
"All of you, come back. If you wait for the space to shatter, you'll have nowhere to be buried."
"Oh~"
Yang Hong's concern was valid. After he recalled Yu Kewei and the other thirty tree demons, and retrieved the two types of spiritual plants he had planted, he used the secret realm's fourth-grade spiritual plants for one final insight session before the entire secret realm collapsed!
Having gained experience from a previous occasion, he had already left this secret realm before its collapse.
He waited outside for three hours and witnessed the spatial turbulence erupting from the secret realm's collapse, as well as some crystals, shimmering with silver-white light, being ejected by the spatial turbulence.
Seeing those crystals being ejected, Yang Hong's eyes lit up. He enveloped them with his magical power and divine sense, quickly drawing them towards him.
"Stop~"
"Kid, stop! Those Profound Void Crystal Stones belong to us."
Just as Yang Hong had retrieved the crystals with a large hand of true essence, several angry voices roared,
and sharp sword energy shot from behind him!