Abyssal Lord of the Magi World

Micra, the Devil Marchioness, saw the throne room's floor shine with purple energy and how seven runes with the form of eyes appeared. They were too fast and unleashed an invisible and undodgeable force that struck her soul.

Seven Soul Eradicators landed at the same time in the Devil Marchioness. Since neither Zatiel's Rebirth Eye nor laws enhance them, even together, their offensive power only reached the Pseudo 5th Engraving Stage.

If Micra were at her peak, she could have defended from the Soul Eradicators' runes with relative ease. However, while her body had recovered, the wounds the Blood Duke left in her soul had yet to heal completely.

The Devil Marchioness felt excruciating pain. Due to the attack's nature, she could not mobilize her Soul Origin and could barely use her energy pool. 

'Since when Kenner has such an outstanding dominion over the soul!?' That thought passed through her mind as she felt her perception enter a different dimension. The Devil Marchioness could discern what was happening, but her body was having a hard time reacting.

Everything in this dimension froze except for the man beneath her, who rushed at her with an incredible speed.

Zatiel flew up while bone spikes covered by golden plasma emerged from his elbows and knees. Using Doomsday Incarnation increased his strength, but it could not compare with the boost in battle power that his following action provoked.

'One with the Law'

Even though he did not say the words aloud, the Devil Marchioness knew what he was doing. 

The Neo-Demon's dark wings grew utterly white, and a giant golden eye appeared in each one of them. These eyes seemed to connect with the Law of Life and the Law of Creation in Avernus, drawing the plane's endless vitality and storing it into the feathers. 

Streams of a dark force that seem to be the embodiment of death and destruction converged in Zatiel's body, generating a plate armor that covered every part of him except for his eyes.

The weapon made out of the Pit Fiend's spine merged with the armor, making Zatiel's right hand and the white sword one.

Three dark and emotionless eyes replaced the runes in the white sword and unleashed a bluish-purple flame that coated the weapon. 

The last change was in Zatiel's vertical and left eye. They closed down, and their energy and power were all transferred to the Rebirth Eye.

The Neo-Demon's right eye began to shine as a monstrous force emerged from it. The power was so high that trails of blood were dripping as the organ reached its limit.

The pain the Devil Marchioness felt did not stop her from being shocked by her enemy's immense power-up. Although a powerful bloodline and mighty laws affected One with the Law's endowment, what she saw was absurd.

Micra could feel a great danger approaching and knew she had little time to act. She was ready to sacrifice some of her life force to stabilize her soul dimension and fight back.

As a Peak Rank 5 life form with a Sacred Body of Laws, she was in a constant state of One with the Law, but she needed to channel her Soul Origin to display its full power. 

Unfortunately for the Devil Marchioness, before she could do anything, the enhanced Rebirth Eye burned a monstrous amount of Mind Force and fired the Neo-Demon's deadliest attack.

Without warning, the Devil Marchioness saw a purple portal appear in her soul dimension. A monstrous force immediately attempted to swallow her consciousness, making it difficult for her to think.

The Devil Marchioness was resisting but what happened next froze her heart. A monstrous hand covered in shadows emerged from the portal and attempted to pull her entire True Soul into the nightmarish plane that gave birth to it.

Not even a fraction of a second had passed from the moment the Soul Eradicator's runes appeared, but Zatiel was already less than ten meters away from the Devil Marchioness with his death sword ready to cut her two heads.

He was ready to finish the battle in one single stroke. However, no devil that earned the title of Marquess was weak or lacked battle experience.

The danger made Micra disregard the consequences, and she burned her soul to regain her full strength. 

The Devil Marchioness used every ounce of her power to keep the monstrous shadow hand at bay before mobilizing some of her energy to transform her heads into stone and cover them with her arms. 

Zatiel appeared in front of the Devil Marchioness but lost his best target. Keeping his focus, the Neo-Demon attacked the female's heart with the death sword.

His eyes narrowed as he felt an immense resistance due to the Devil Marchioness having managed to convert her thoracic cage into stone in that millisecond.

If the death sword with the Law of Death and the Law of Destruction were the Neo-Demon's only weapon, Micra would have saved herself from receiving a deadly wound. 

Unlike his previous life, death and destruction were only a part of Zatiel's existence. 

The golden eyes in the Neo-Demon's white wings glowed, and the Devil Marchioness experienced with horror how an invisible power severed the life and endurance of the bones and flesh in her chest, significantly weakening her defenses.

Things only grew worse for the Devil Marchioness, as the vitality and life inside the thousands of white feathers were channeled into the death sword and transformed entirely into deadly power.

The bluish-purple fire that coated the death sword destroyed everything in its path.

Micra felt the sword piercing her heart, but despite the horrific damage, she was able to counterattack, and her tail struck point-blank the Neo-Demon's chest.

All of that took a long time to explain, but the Rank 4 Devils who focused on the Devil Marchioness only saw a purple light before a shockwave destroyed the center of the city, and a crack in space swallowed her.

The Neo-Demon and the Devil Marchioness appeared in the sky, thousands of meters away from each other. Their energies were burning with the intensity of suns, and none of them planned a battle of attrition.

The death armor covered Zatiel's pale face, and that he was having a hard time controlling his breathing. He went all out from the start and was suffering the consequences for it.

The Neo-Demon consumed a tremendous amount of Elemental Chaos activating Shooting Star End, and his organs trembled due to the sudden acceleration. 

That unique Rebirth Nightmare drained more than half of his Mind Force and submitted his Rebirth Eye to immense stress. Even if he wanted to use the spell again and had the energy needed, his right eye could not endure it.

Zatiel did not flash immediately to his opponent and instead communicated with the A.I. Chip.

'A.I. Chip, display the information recollected from the in situ testing of One with the Law.'

Always faithful, Zatiel heard the robotic voice of the chip the next instant.

"Bip...

Proceeding to display data of the host's fusion with his Law Avatar.

Zatiel's One with the Law: Winged Immortal Knight of Death and Destruction

Host obtained an overall improvement of his battle power, including the might of his soul invasion spells.

During this state, the host obtained three unique abilities.

Life Overlord: The host can channel the forces connected to the Law of Life and the Law of Creation. You can draw the life and vitality of your surroundings, collecting it into your wings.

The host can also negate a target's life, weakening its defenses and stopping regeneration abilities.

Death Armor: Formed by the Law of Death and the Law of Destruction. It allows the host to transform any damage taken into a death aura that can potentiate the death sword.

A very potent death force will infect any living tissue that enters in contact with the death armor.

Rebirth Cycle: The host can instantly transform the vitality and life force collected by the white wings into power for the death sword and convert the death aura formed by the death armor into life force to heal the body."

Zatiel's laws formed a unique Law Avatar, and the powers it granted once it fused with his body were terrific. However, the amount of Soul Origin it consumed was also astonishing.

The Neo-Demon knew that soon his fusion with the Law Avatar would be over, so he needed to finish the Devil Marchioness fast.