Demon Cultivator in Abyssal Era

Chu Xiu exhaled lightly, a trace of fatigue flashed across his eyes.

The high-intensity use of [Perfect Refining] undeniably consumes a lot, even for him now.

But fortunately, the result is satisfactory.

Chu Xiu could clearly feel the terrifying power contained in this drop of liquid!

"If it touches you, even a demigod might lose a layer of skin, and some weaker demigods could be directly obliterated."

"Since you’re condensed from Death Qi, I’ll call you Tribulation Poison."

Moreover, this drop of Tribulation Poison was only refined using ordinary Death Qi, not the mutated Death Qi; ordinary Death Qi is a neutralized product of Tribulation and Dao, not pure. If refined with mutated Death Qi, the power might increase a level!

Additionally, Chu Xiu could feel that after refining this drop of liquid, the Spiritual Light on the Myriad Filth Returning Origin Bag seemed much more restrained—though it looked less dazzling, the aura it emitted was stronger.

"This is the mystery of the Myriad Filth Returning Origin Bag, after refining the poisons and miasma within, the body itself can absorb power to grow!"

"With enough refinement, my Middle Grade Myriad Filth Returning Origin Bag might even evolve to Upper Grade!"

This is the greatest difference between this artifact and others and the main reason Chu Xiu chose to refine this artifact.

Exhaling lightly, Chu Xiu smiled: "In that case, let’s take this opportunity to refine this artifact well."

With a wave of his hand, the Ten Directions Nether Fire Array and the Four Symbols Yin Yang Furnace appeared in the venue, together with a dozen spiritual materials floating out!

These spiritual materials are high-grade materials from eight immortals and match the Myriad Filth Returning Origin Bag’s Five Elements and attributes; their refinement will upgrade the artifact’s grade!

Chu Xiu estimated it could upgrade at least by one grade, from Sixth Grade to Fifth Grade, and with luck, even directly to Fourth Grade!

The basic grade improvement naturally benefits Chu Xiu’s subsequent refinement and nurturing.

As the Perfect Refining was activated, materials began to merge; in dedicated refining, half a month passed in an instant, and this day finally saw the Spiritual Light burst forth, with countless Spiritual Qi spouting from the Four Symbols Yin Yang Furnace; once the phenomenon disappeared, the new Myriad Filth Returning Origin Bag appeared at its place.

Chu Xiu could clearly sense that compared to before, both the internal space and the refining restrictions were more than doubled in strength!

"Definitely reaches Fifth Grade, just a hair away from Fourth Grade!"

Chu Xiu was very satisfied, consumed some recovery artifacts, exited the Domain of Death Qi for half a day to restore his spirit, and then immediately re-entered to start absorbing and refining mutated Death Qi!

The moment the Myriad Filth Returning Origin Bag opened, it acted like a giant whale, madly devouring the surrounding mutated Death Qi, which lasted for half an hour!

Though still insignificant compared to the immense Death Qi vortex, Chu Xiu wasn’t anxious, withdrew from the Death Qi Domain for full refinement, and after successfully refining Tribulation Poison, returned for absorption.

Amid continuous absorption and refinement, the Myriad Filth Returning Origin Bag seemed to receive nurturing from some great supplement, its spiritual power growing ever stronger.

A month and a half passed, and the Myriad Filth Returning Origin Bag suddenly radiated brilliant Spiritual Light, then entirely restrained it, quietly resting in Chu Xiu’s hand, no longer absorbing a single speck of Death Qi.

"Perfected."

Gazing at the Myriad Filth Returning Origin Bag in his hand, its brilliance completely restrained, seemingly no different from an ordinary cloth sack, Chu Xiu smiled with satisfaction.

For a month and a half, he tirelessly absorbed and refined mutated Death Qi. After refining the sixth drop of Tribulation Poison, the Myriad Filth Returning Origin Bag successfully upgraded to Fourth Grade.

Upon elevating to Fourth Grade, the grade displayed in the Abyss remained Demigod Myth, but Chu Xiu could distinctly feel that the strength of the Fourth Grade Myriad Filth Returning Origin Bag far surpassed that of the Chiwen and Star Ring Pulse Fist Armor!

He speculated this was because the grade of equipment and that of the Awakened differed greatly between Demigod and God, even if both were Demigod Myth, the power differed vastly.

Chu Xiu didn’t overly concern himself with the grade, since the attributes in the Abyss are merely a reference, while real-world power is most essential.

Thereafter he continued repeating the refinement steps to further enhance the Myriad Filth Returning Origin Bag’s power.

Ultimately, although unable to elevate the Myriad Filth Returning Origin Bag to the Upper Three Grades, the amount of Tribulation Poison in the bag had reached a full fourteen drops!

Moreover, as expected, the Tribulation Poison refined from mutated Death Qi was thirty percent more powerful than that refined from ordinary Death Qi!

"A single drop of Tribulation Poison can obliterate an ordinary demigod, then if all fourteen drops..."

Chu Xiu thought that though it might not kill a demigod at Celestial King level like Ashtar, it could at least cause them some harm, possibly even heavily injuring them!

Of course, this presupposes the Tribulation Poison strikes the opponent, for although its power is great, demigods at Celestial King level possess various divine techniques, and Chu Xiu wasn’t arrogant enough to believe these external factors alone could challenge such mighty beings.

To engage with beings of that tier... at the very least, one must first ascend to Heroic Spirit!

If the basic attributes are too far apart, no matter how many artifacts are available, they’re useless!

Though still not a match for a Celestial King, having added another card to his hand, Chu Xiu was in high spirits.

Moreover, continuous refining and devouring of an unknown amount of mutated Death Qi over this month and a half had thinned the distant Death Qi vortex somewhat.

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