After resolving the hidden danger in this underground garage and obtaining three Hundred-Year-Old Cyan Ghosts, it meant a large amount of Spirit Stone resources had been secured, alleviating the financial crisis. Zheng Yi breathed a sigh of relief, feeling very good.
After all, although he had some confidence beforehand.
But facing three Hundred-Year-Old Cyan Ghosts equivalent to the Sixth Level of Cultivation, he still felt a bit uneasy.
However, the process was thrilling yet without danger, further proving the Soul Catching Sect's Magical Artifact's restraining effect on ghost entities, successfully capturing and suppressing the three Cyan Ghosts in the Soul-Catching Banner, resulting in a perfect outcome.
He waved the Soul-Catching Banner, drawing in a crowd of Fierce Ghosts, and the Black Evil Technique in his body automatically circulated, linking with the Soul-Catching Banner to nurture the lost Ghost Qi.
The temperature in the underground garage suddenly rose, becoming a pleasant warmth in winter and coolness in summer, instead of the previous bone-chilling cold.
This encounter made Zheng Yi have a clear understanding of his current strength.
Although he had spent nearly twenty years in the Immortal Realm of Profound Void City, he had always been mingling among the Loose Cultivators at the bottom, without receiving systematic cultivation training.
Looking at it now, the gap between disciples from orthodox cultivation sects and Loose Cultivators is indeed indescribable.
Even for a small demon cultivation sect like the Soul Catching Sect, its imparted cultivation techniques and Magical Artifacts to Outer Disciples have their unique features.
Of course, on the other hand, Zheng Yi also understood that his rapid rise in strength was mainly due to this doomsday world being practically a paradise for Demon Cultivators.
In such a cultivation sacred land, any Demon Cultivator can rapidly enhance their strength like him, almost as if cheating.
However, because of the confidence brought by his enhanced strength, his heart became calm, and he returned to tranquility.
This is the confidence brought by cultivation strength.
Although the magical techniques in the Great Yi City Immortal Realm far surpass this doomsday world, it must be admitted that this world is full of oddities, with a simple underground garage containing three Hundred-Year-Old Cyan Ghosts, which is indeed unexpected.
It must be recognized that even in this doomsday world, one must remain vigilant, not becoming complacent because of the abundance of cultivation resources.
Zheng Yi found a clean room to settle into.
In this doomsday world, everywhere there are ruins, but they still retain the highly advanced technological civilization's achievements, with rows of skyscrapers closely packed, though now covered with dust, empty of people, turned into a dead realm.
In the living room of the room, Zheng Yi released the Soul-Catching Banner, ordering the Main Soul Red-clothed Female Ghost to lead a team of Soul-Catching Banner ghosts to guard the room, ensuring the safety of this place.
A thick black mist emerged from the Soul-Catching Banner, completely enveloping the room, as if isolating two worlds.
Only then did Zheng Yi sit down cross-legged with peace of mind, beginning to operate the revised "Black Evil Technique," to recover the previously consumed Spiritual Power in his body.
Soon, black mist covered his body; from outside, only a dense black mist could be seen, completely concealing Zheng Yi's figure hidden within.
About half an hour passed, recovering to his best state, yet Zheng Yi did not rush to leave; instead, he continued to operate the "Black Evil Technique," and waved the Soul-Catching Banner, a Cyan Ghost bound with chains formed by Evil Qi was brought before him.
Understanding its fate, the Cyan Ghost struggled fiercely, the chains on it rattling loudly.
Unfortunately, the previous battle had exhausted most of its power, and then it was suppressed in the special Yin Qi Space by the Soul-Catching Banner, unable to absorb Ghost Qi to recover itself, instead expending its last trace of Ghost Qi.
This Cyan Ghost was now at its end, like a lamb awaiting slaughter, with no ability to resist in Zheng Yi's hands.
He didn't waste words, directly operating the "Black Evil Technique's" route within his body, simultaneously extending his right palm, claw-like, clamping onto this Centennial Ghost's skull fiercely.
The five-tenths transformed Cyan Profound Fiend surged out from his body, inducing the origin energy within the Cyan Ghost's corporeal body, merging the two.
A half-step Cyan Profound Fiend burst forth again, directly attaching to the chains formed by Black Evil; originally jet-black like unbreakable chains' surfaces ignited with a strange azure-tinged grey flame.
The cold azure-grey flame burnt the Centennial Ghost's corporeal body swiftly spreading throughout the entire ghostly body.
Screeching!
The Cyan Ghost continuously rolled and wailed, attempting to extinguish the burning flame, but the azure-grey flames burned even fiercer; the Ghost Qi on the Cyan Ghost not only failed to extinguish the fire but acted like an accelerant, fueling a more intense blaze.
In just a few breaths, the Cyan Ghost's body turned to dust, leaving behind only a glob of dense cyan substance.
"Is this the legendary Cyan Essence?!"
"It seems to contain an extremely pure Soul Power, said to be a material for crafting high-tier spiritual artifacts, and also directly refineable, greatly beneficial to Qi Cultivators..."
Zheng Yi dared not directly swallow the Cyan Ghost as he had done with the Fierce Ghosts and Resentful Spirits at the ghost school.
After all, the spirits at the ghost school were generally low in strength, mostly at the Qi Cultivation First and Second Layers, apart from the Ghost King Red-clothed Female Ghost.
But the Cyan Ghosts with Hundred-Year Dao Practice were ghost entities equivalent to the Qi Cultivation Sixth Layer.
Although just a stray and solitary spirit, without having cultivated true ghost path secret skills, equivalent to a rapidly catalyzed state with inherent flaws, three Cyan Ghosts combined could contend with a Qi Cultivation Seventh Layer cultivator.
Fortunately, Zheng Yi played to his strengths from the start, intentionally maneuvering the Soul-Catching Banner to separate the three Cyan Ghosts, severing their link.
If the three Hundred-Year Cyan Ghosts had joined forces to face an enemy together, even a Qi Cultivation Seventh Layer cultivator would find it challenging to deal with them.
And the greatest benefit of these Hundred-Year Cyan Ghosts lied in the Cyan Essence refined from their ghostly bodies.
Now Zheng Yi focused all his attention on refining it, thoroughly burning off the impurities on the ghostly body's surface, finally condensing into that glob of dense cyan substance, which was the so-called Cyan Essence.
His current Black Evil Technique was transitioning from Profound Yin Fiend to Cyan Profound Fiend, and this Hundred-Year Cyan Ghost just happened to assist him greatly.
A Hundred-Year-Old Ghost's Dao Practice was equivalent to dozens of Resentful Spirits and Evil Ghosts, now being merged into Zheng Yi's body.
Boom!
After swallowing the essence left by the burnt Cyan Ghost, the azure-grey Evil Qi emanating from Zheng Yi's body gradually shifted towards a deeper cyan hue.
Before consuming the Cyan Ghost, the Black Evil Qi had already undergone a transformation, evolving into Profound Yin Fiend after assimilating and refining nine Resentful Spirits and Evil Ghosts.
Later, at the ghost school, a large quantity of ghost entities was refined, converting the Profound Yin Fiend into five-tenths Cyan Profound Fiend.
Afterwards, on the Luo City streets, slaying zombies, and during Resentful Spirit attacks, through various encounters, the Cyan Profound Fiend in Zheng Yi's body had converted over seventy percent.
And now, after devouring the Cyan Ghost's essence material, the azure-grey Evil Qi astonishingly transformed into a cyan flame.
Zheng Yi opened his palm; an azure flame burned silently, without crackling explosions, without unbearable heat, possessing instead a bone-chilling cold.