"Who are you two?" The voice of the Netherworld King Spirit of Non-Forgetfulness echoed from behind Grendel and Ladon.
As Grendel and Ladon turned their heads, they saw the Netherworld King Spirit of Non-Forgetfulness, whose frame was a size larger and whose height was a full head taller than theirs, looking down at them.
"Who the hell are you?! I've never seen a dragon like you!! A new face?!" Grendel jumped back, putting some distance between himself and the Netherworld King Spirit of Non-Forgetfulness.
Litos Azimuth Calamity's nose twitched as he caught a scent. He stepped forward and said, "You carry the scent of those who have returned from the dead. That means you must be the Legendary Evil Dragons who were never truly killed, Grendel and Ladon."
"Heh, you've got a sharp nose to be able to smell something like that. That's right, yours truly is Grendel. And who are you guys?" Grendel looked at the Netherworld King Spirit of Non-Forgetfulness, pointing at himself with his thumb with a cruel grin.
"..." Ladon said nothing, merely remaining alert and ready to release defensive barriers at any moment.
Having received Grendel's reply, the aura around the Netherworld King Spirit of Non-Forgetfulness rose slightly as he spoke to Grendel and Ladon:
"We are the Guardian Dragons of the Third Prison of the Underworld: the The Union of the Dead—Netherworld King Spirit of Non-Forgetfulness, and the true dragon emperor, Litos Azimuth Calamity. Beings who return from the dead are the ultimate taboo."
Hearing that this was the Underworld, Ladon said in shock, "What!! This is the Underworld!! Impossible!! The Underworld is a world of darkness!! How could there be such a brilliant starry sky!?"
Grendel was also dumbfounded as he looked up at the Underworld's starry sky.
Issei Hyoudou shouted an explanation from nearby: "Grendel! Ladon! Actually, the Hades we've been facing all this time was a fake! Just a puppet avatar! Now the real Hades has awakened! The true appearance of the Underworld has been revealed because of it!"
"What! A fake!!" This sentence once again plunged Ladon into shock, as if his worldview had been completely overturned.
Grendel, however, didn't care much about that. Instead, he clenched his fists and looked at the Netherworld King Spirit of Non-Forgetfulness with a face full of fighting spirit.
"I don't care if that old bag of bones Hades is real or fake. Having such a powerful opponent right in front of me makes my blood boil with excitement."
With that, Grendel launched an attack at the Netherworld King Spirit of Non-Forgetfulness with a punch full of momentum. The Netherworld King Spirit of Non-Forgetfulness casually caught Grendel's fist with the dragon head on his right hand.
Then, the Netherworld King Spirit of Non-Forgetfulness used the teeth of the dragon head on his left hand like a razor, shaving off Grendel's scales one by one.
A black dragon scale fell in front of the trapped Issei Hyoudou, leaving him in utter shock. One must know that Grendel's scales were said to be the hardest among the dragon race; it was impossible to even leave a mark on them, let alone shave them off.
Yet the Netherworld King Spirit of Non-Forgetfulness had shaved them off as easily as if he were descaling a fish. Just how strong was this power?
Next, the tail of the Netherworld King Spirit of Non-Forgetfulness, which resembled a long bone whip, lashed out. With a single swing, it knocked Grendel to the ground, unable to get up.
The vibration caused by Grendel's fall helped Issei Hyoudou and the others escape from their cage of jagged stone.
The group intended to leave the Netherworld King Spirit of Non-Forgetfulness and Litos Azimuth Calamity to the two Legendary Evil Dragons while they headed for the next level of Hell.
"You damned skeletal bastard! How dare you shave off my scales!!" Grendel stood up and shouted angrily at the Netherworld King Spirit of Non-Forgetfulness.
After speaking, Grendel attacked by breathing dragon fire at the Netherworld King Spirit of Non-Forgetfulness.
The mouths of the dragon heads on both of the Netherworld King Spirit of Non-Forgetfulness's hands opened. One dragon head breathed a gale while the other breathed frost; the two mixed together to form a fierce blizzard that extinguished Grendel's dragon fire.
Then, the Netherworld King Spirit of Non-Forgetfulness took the opportunity to charge through the blizzard, straight to the front of Grendel. The dragon heads on his hands bit into Grendel's shoulders and lifted him high into the air.
No matter whether Grendel spat dragon fire or swung his claws to attack the Netherworld King Spirit of Non-Forgetfulness's skull, not a single mark appeared on him. He stood his ground, unmoved.
The corners of the Netherworld King Spirit of Non-Forgetfulness's mouth curled up slightly, making his skeletal head look even more terrifying. With a surge of strength in his arms, he physically tore Grendel in half, and the resulting rain of blood dyed the path ahead red.
The Netherworld King Spirit of Non-Forgetfulness threw the two halves of Grendel into the sky. He brought the dragon heads on his hands together, and energy of various colors began to condense.
"Chaos Elemental Stripping!!" The dragon heads on the Netherworld King Spirit of Non-Forgetfulness's hands fired a powerful multi-colored energy cannon, completely annihilating Grendel. The power was so great that it lit up the entire sky of the Underworld.
Finally, an eerie green lantern flew out from the mouth of the dragon head on the Netherworld King Spirit of Non-Forgetfulness's left hand. The lantern gathered Grendel's soul and imprisoned it.
"ROOOOOAR—!!" Litos Azimuth Calamity let out a roar and sprinted toward Ladon with heavy footsteps.
Watching the approaching Litos Azimuth Calamity, Ladon felt like a prey animal being targeted by a hunter. He began to deploy multiple layers of barriers and seals in front of himself.
But to Ladon's surprise, raw power overcame all techniques. With a swing of a pitch-black dragon claw, the barriers and seals Ladon had deployed were shattered instantly.
Litos Azimuth Calamity tackled Ladon to the ground. Ladon looked up at Litos Azimuth Calamity's black wolf-like face, sweat like resin dripping from his body as he spoke:
"No wonder you dare call yourself a true dragon emperor. This power is indeed something only a sovereign among true dragons could possess."
Since ancient times, the only being in the world who could be called a 'True Dragon' was the strongest being in existence, Great Red. Seeing this giant dragon that looked like a black wolf dare to call himself a true dragon emperor, it was clear the title was not self-proclaimed.
"Before you die, let me tell you. In this Underworld, there are two others besides me who can be called true dragon emperors," Litos Azimuth Calamity said softly to Ladon.
"What!!" Ladon was stunned by Litos Azimuth Calamity's words. There were actually three true dragon emperors!! Just how powerful was the strength of this Underworld!!
With that, Litos Azimuth Calamity grabbed the top and bottom of Ladon with his claws. Under Ladon's shocked gaze, he began to exert a crushing pressure.
Ladon didn't even have time to scream. His wooden body was physically compressed into a large block of charcoal by Litos Azimuth Calamity's immense arm strength.
Then, Litos Azimuth Calamity continued to exert force, crushing the large block of charcoal toward the center. Violent sounds erupted during the constant compression. When his claws finally met, Ladon's wooden body had been compressed into a giant diamond.
Inside the diamond, Ladon's miserable wails could be heard.
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