The fiery crimson sun and the black sun with a grey halo radiated so much energy that the temperature in the Yuru continent grew unbearable for Rank 0 life form.
Millions of lesser devils, unfortunate enough to be in the open and outside a city's protection fell to the ground as they felt their lungs burning due to the air's temperature.
Countless lives ended in a matter of seconds just because two individuals decided to stop restraining the immense power they carry inside their bodies.
The first stage for a true Rank 6 life form is called Hollow Sun Domain Stage. The term sun in their title refers to the fact that a Soul Law Domain existence could take the place of a Low World's sun if he so desired, bringing warmth and energy to the billions of lives inside it.
Neither Duke Krior nor the Darkness Poison Duke cared about the lives of the lesser devils or the consequences that their power could bring to the plane, but they are profoundly terrified of inciting the rage of an Archdevil. That is why they were both a million kilometers above the ground, practically the highest they could be without leaving the Iron City of Dis.
The Rank 4 Devils acted fast, immediately storing the lesser devils in their space ring before flying away. They would have preferred to escape when the Dukes arrived, but their Devil Lords have given them orders, and they can not disobey.
Devil Counts immediately positioned themselves at the edge of the battlefield, and the Devil Marquises regrouped themselves, forming two teams.
The Devil Lords would have preferred to escape as well. However, while both Duke Krior and the Rank 6 Pit Fiend did not care about the Rank 4 Devils and lesser devils running away, they must stay on the battlefield.
Duke Krior and the Darkness Poison Duke stared at each other, and unlike what you would expect to see in two men ready to fight to the death, there was no killing intent in their eyes.
That would seem odd for most people, but those who understand devils know that they are calculative beings that rarely let their emotions influence their state of mind during a fight.
The Rank 6 Pit Fiend was forty-five meters tall, and every part of his body, from his head to his feet, was a deadly weapon. A dark aura surrounded him, not only increasing his already monstrous physical might but also altering the laws around him, pushing them to a state of order.
When Zatiel saw that dark aura, a series of memories came to his mind that almost made him lose control over his emotions and release the purest killing intent he kept deep inside his heart.
That aura was a Pit Fiend's unique ability known as Order Aura, and while others may not know it, the Incarnation of Death and Destruction knew that its true origin was alien to the Prima Universe's laws.
Duke Krior also had a severe expression as he saw the Order Aura. He did not know its secrets but knew very well how powerful that ability was.
Unlike his opponent, Duke Krior's height was very short, measuring a little less than a meter, and his physical might was not much higher than that of a Devil Marquess.
Despite that, the Rank 6 Pit Fiend had a somber expression on his face as he faced the dwarf Devil Duke.
The duo stared at each other for less than a minute before their eyes shined like raging suns, and the next second, their Law Domains began to grow.
The fired crimson sun and the black sun reached a diameter of two thousand kilometers and collided instantly.
"RUMBLE!"
Storms carrying the might of the laws occurred when the two Hollow Sun Domains crashed. The sky appeared ready to break apart, and space cracks emerged for dozens of thousands of kilometers.
Despite the immense distance to the ground, earthquakes occurred throughout the entire Yuru continent.
The suns grew more than four thousand kilometers!
Duke Krior and the Darkness Poison Duke remained in the centers of their Hollow Sun Domains. Neither of them performed an attack and limited themselves to unleash the might of their laws and soul force.
Their powers began to affect the neighboring continents, endangering the life of every Rank 0 lesser devil in them, and their fight had not even really started yet. They were only testing their enemy.
This level of collateral damage is one reason why the Middle and Low Worlds don't allow life forms above Rank 5 in them. The destruction they create could wipe out more than ninety percent of their population in a matter of minutes.
Fear invaded the hearts of the Devil Counts as they saw the power of those massive suns that had already covered the entire sky of the Yuru continent.
The expression in the Devil Marquises was complicated, especially in the Skull Dragon and Infernal Rage Titan's faces. There was only one level of separation between the duo and the Dukes in the sky, but the difference in battle power was astronomical.
Zatiel and Eon Six also stared at the Devil Dukes, but there was no fear in their hearts. They focused on the battle, waiting for time to strike.
The Neo-Demon also used his Rebirth Eye to scan the Devil Dukes. Their spiritual defenses and Law Domains were too strong for Zatiel to pierce them, but he could still understand a little of their laws.
"Duke Krior trains the Law of Fire and the Law of Light, there also seems to be the Law of Destruction inside his energy, but he has yet to form a Law Essence of this one. As for the Darkness Poison Duke, it is as Eon Six told me, he trains the Law of Darkness and, contrary to what his title says, he does not practice the Law of Poison but the Law of Withering.'
The law storm kept growing more and more potent as neither of the two suns fell back. Its might was so high that it transformed the area within five hundred thousand kilometers around the Devil Dukes into a death zone for anyone beneath Rank 5.
Devil Counts needed to activate their magic defenses to resist the power of the law storm. As for Devil Marquises, thanks to their Sacred Body of Laws, their physical might was more than enough to protect them from any damage.
The contest between the Hollow Sun Domains kept going for an entire hour before they retracted them since it was clear that at least when it comes to their laws and soul force, neither could overcome the other.
The fiery crimson sun and the black sun with a grey halo contracted at an impressive speed, but that didn't mean they became weaker. As the energy in them compressed, the aura of Duke Krior and the Darkness Poison Duke soared.
Once both Law Domain became one hundred meters wide, the Dukes' bodies, energy, and soul reached their peak.
Without warning, the Darkness Poison Duke's body melted into a puddle of darkness that fused into space. All the Devil Marquises lost sight of him, and they only perceived him again behind Duke Krior's Law Domain.
The Rank 6 Pit Fiend flashed forward, piercing into the fiery crimson sun, and his claw headed for the back of Duke Krior's head, like a spear covered in a dark aura.
