Reborn As A Ghost: Time To Build My Undead Army!

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He had changed completely. The Dragon King Lucifer had undergone a profound transformation and evolution compared to his former self. A stream of System notifications appeared in front of him, and he could now see his Status in full.

Each of these surprising notifications told him everything he needed to know. Feeling stronger than ever before, he charged against the evil god with full power. His Aura erupted with glistening and blinding white light, the void itself gathering within and around him, creating ripples through space.

FLAAASH!

"Lucifer?!"

Maria's eyes widened as Amelia stood confused. Lucifer was a student in their class, but she never thought he could suddenly turn into a giant dragon of light.

"The darkness of nightmares originates from all living beings' darkest thoughts and emotions. The very fear of death brought about your existence, but that is nothing but part of nature itself!" Lucifer's voice echoed. "Your existence is not influenced by those who produce the energy but by yourself. You are who you are because you chose to be, and humanity or the living beings that came before have nothing to do with it!"

"W-What are you talking about!?"

The Original Nightmare Curse pretended not to know, but Lucifer struck directly at his wicked heart, immediately addressing something nobody had brought up, something that made the Evil God tremble in fear.

"{Sacred White Void Flames of Oblivion}!"

He roared, and a gigantic storm of white flames emerged out of thin air, clashing against the accursed monstrosity and his endless army of twisted Demonic Nightmares.

FLUOOOSH!

The white flames were immensely potent, disintegrating the Demonic Nightmares faster than they could regenerate and even faster than the Original Nightmare Curse could summon or create more, overwhelming him on the spot.

"I-Impossible…! Are those flames the complete opposite of nightmares?! They're even more potent than the usual dream power…?!"

The Original Nightmare Curse wasn't ready for the rude awakening he was about to receive. Lucifer appeared in front of him, swinging his sharp claws against the gigantic, aberrant body.

"I have been watching, hearing everything that has happened so far…!"

His claws blazed with these potent white flames, slashing through the monstrous Original Nightmare Curse, tearing apart his tentacles one by one and beginning to burn and bombard his body with white flame explosions.

BOOM! BOOM! BOOM! BOOM!

"UUUUAAAGH?!"

The Nightmare Curse screamed in agony as he quickly manifested giant claws of his own, slashing and then pushing Lucifer away, only for the dragon to rush back. His flames grew stronger with each attempt at purifying, concentrating on a single point.

"{Sacred White Void Flames of Oblivion Arts}: {Heavenly Nova}!"

The sphere of white flames impacted the Original Nightmare Curse at point-blank range, consuming a massive portion of his very existence in a single explosion.

BOOOMMM!!!

"IMPOSSIBLE…! AAAAAAAGHHHH!"

He screamed in utter agony. Even as he tried to regain more Nightmare Energy, his body continuously lost mass, constantly writhing in pain and agony.

"Holy shit, he's strong!" Beatriz said in her original Nightmare Demon form. "What the hell?! Is this the same Lucifer I know?!"

"Yeah, it's him!" Maria said happily. "Lucifer… he's really evolved into something even more amazing…! He finally left behind his grievances, what made him an undead, and achieved enlightenment, purification… it was as if he exorcized himself through that evolution. But instead of passing away, he evolved. What remained after the ashes of his undead husk disappeared was the truest, purest, and most beautiful embodiment of who he is and how much he has changed."

"I see…" Amelia smiled, watching the gigantic white dragon overwhelm the evil deity. "It's amazing what you and your friends can do, Maria… the world where you come from was… Yggdrasil, right? I wonder if I could visit it one day?"

"Of course!" Maria nodded. "Once we're done with this, I'll bring you to visit it together when we return!"

"Y-YOU DAMN LIZARD!"

The Nightmare Curse screamed, his body swirling around his giant wounds as tendrils of darkness regenerated the lost mass, only for Lucifer's Heavenly Novas to rain down on him constantly, consuming him almost entirely each time.

BOOOM! BOOOM! BOOOM! BOOOM!

"NOOOOO! S-STOOOOP! I CAN'T…! I CAN'T DO ANYTHING?!"

The monstrous beast complained as if his body couldn't keep up with all that destruction, and that was saying something when Lucifer had yet to even use his full new power.

"If there's something I've learned through this journey, it's that in the end, who you truly are right now is who you decided to be!" Lucifer roared. "External things will definitely influence you, but ultimately, it's you who decides what influences you or not… Original Nightmare Curse, your hypocrisy knows no bounds!"

He roared, kicking the monstrous spherical aberration into the Nightmare Dimension's floating islands of rubble and lost pieces of land that the Fragmented Nightmare Realm had swallowed.

CRAAASH!

"AAAGHHH…! INSOLENT LITTLE BASTARD…! KNOW YOUR PLACE!"

The Nightmare Curse opened his jaws, revealing countless crimson eyes inside and firing hundreds of laser beams at Lucifer one after another.

And yet, as he faced this barrage, Lucifer smiled, inhaling air and then releasing it in a gigantic dragon breath of white flames, consuming the Original Nightmare Curse's attacks entirely.

BOOOMMM!!!

The breath attack reached his body, piercing it and leaving a gigantic hole behind, making the monstrous nightmare cry in despair. His eyes widened as black blood started bleeding out of them, desperately regenerating, only for Lucifer to blast him once more.

"T-THIS CANNOT BE HAPPENING! I AM…! HOW ARE YOU…?! YOU'RE STRONGER THAN ME?!"

"Perhaps not, but my power seems to be your weakness."

"GRAAAAHHHHH!!!"

The Nightmare Curse screamed. Millions of Demonic Nightmares he created started fusing with his body, amassing it constantly and trying to compact it. Flesh, tendrils, everything became one as a humanoid figure materialized, covered in hard black steel armor, with dozens of arms and weapons, and long purple hair with glowing red eyes.

"I'LL SLAY YOU NO MATTER WHAT, LIZARD!"

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