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While the Necrotic Death Lord was being attacked by Luminous' barrage of Light Beams and Claw Attacks, Frank swiftly sneaked behind him, his entire body being covered on scales and bone-like black armor. His chest was overflowing with Cosmic and Nether Essence, and the very aura of Null resonated from within Frank's very body.
"[Netherworld's Void]!"
Cosmic Energy and Necrotic Essence combined together, as Frank unleashed a powerful slash with his Demonic Sword, Gram, a gigantic distortion of cosmic energy and necrotic energy emerged, breaking through space itself and slashing through the Necrotic Death Lord's body in two halves!
SLAAAAASH!
"Unngggh?! GRAAAAAGGGH…!"
BAAAAMMM!!!
The Necrotic Death Lord ended falling into he desert below, with both of his body sliced in two perfect halves. Frank glanced down, preparing yet another powerful blow.
"U-Unnngggh…! Y-You can also wield Necrotic… energy?!"
The Necrotic Death Lord, barely managing to speak as his two halves started to turn into ashes felt completely shocked. While he was easily able to intercept and block Luminous powerful Primordial Light, Frank was simply… a completely different being altogether.
"Thanks to Kireina and everyone, I've been able to get a lot of Cosmic Stones and I've regained a lot of my power. I told you I was already an undead being like you, yet at the same time, I am also within the living." Frank smiled back at the skeleton with a rather cocky smirk.
"Amazing, you were able to slice through him when I couldn't even deal damage…" Luminous felt completely shocked, realizing his own strength had yet to fully mature and reach such lengths.
"It is not because you're weak, Luminous. You're actually very strong, but this bastard was using special Necrotic Abilities to enhance his defenses to insane levels, however, using Cosmic Energy and Netherworld Essence, an even higher-level power than Necrotic Energy, I was able to break his little trick." Frank said, as Luminous realized countless runes began breaking down over the sliced skeleton's body.
FLUOOOOSH!
Countless souls began flowing out of the runes, as if they were all being scared of Frank's enormous and intimidating presence.
"M-My Absolute Netherworld Armor…!" Muttered the Necrotic Death Lord, completely shocked. "I took so many eons to make it yet you… you broke it so easily?!"
"I am tired of playing around, even more when there are the lives of many innocents at stake." Frank said. "I won't let anybody die anymore on my watch, that is something I swore to myself."
Frank recalled his past, the days when he was naïve, when he thought the world would always go his way. In those days, his perception of life was easily broken down. His family was slaughtered by his enemies, and he realized he simply couldn't take things easily, he couldn't stop pushing forward, he gained an immense resolve after losing the most precious people in his life.
"Hahh… HAHAHAHA! To be expected of the one Blessed by Null!" Laughed the Necrotic Death Lord.
"I won't let you laugh anymore." Frank said, rushing towards the Necrotic Death Lord by skipping through space itself. "[Spatial Blink]!"
FLASH! FLASH! FLASH! FLASH!
"[Abyssal Demon Catastrophe]!"
His entire body exuded an enormous, overwhelming darkness, as Gram channeled all of this power. Frank moved his sword at an incredibly fast speed, slashing through the body of the Necrotic Death Lord countless times and turning him into ashes!
SLASH! SLASH! SLASH! SLASH! SLASH! SLASH!
"GRAAAAAAHHHHHHH…!"
As the Necrotic Death Lord cried in agony, his entire skeleton body started to be torn apart piece by piece, and then exploded into a massive explosion, shattering the surrounding Spatial Layers and making the world tremble!
BOOOOOOOOMMMMMM!!!!
"Is it done now?" Luminous wondered. "I wanted to help you but… You moved too quickly."
"Hahaha, sorry about that, I just got a bit pumped up." Frank laughed.
"Damn kid you completely devastated that bastard!" Said Gram while laughing out loud. "Now- Huh?!"
FLUOOOOOSH!
However, while everyone thought the Necrotic Death Lord had died, something happened. A mass of phantasmal souls emerged, gathering. It was his own soul fused with the cosmic stone he held and his own necrotic core.
"Hahaha… HAHAHAH! Milady has decided to gift me with her powers!"
Ding!
[The Supreme Divinity [The Lady Veiled on Death] channels her powers with those of the powerful Ruler of the Netherworld!]
[A powerful blessing has been bestowed upon her subject, the [Necrotic Death Lord]!]
[An evolution into a greater being has begun!]
"Who is this woman supposed to be? One of Kireina's enemies? Is she the one possessing Elfina?" Wondered Frank, as he saw in front of him a massive, gigantic phantasmal titan, made up of millions of screaming souls and covered on black armor, with the head in the slight shape of a menacing skull.
"This power… I've attained my Rank Up! I have become a Necrotic Death Overlord!" Laughed the Necrotic Death Overlord, as his entire phantasmal presence became so big it covered the skies! "[Netherworld Domain]! [Underworld Prison]!"
FLAAAAAAASSH!
Before Frank and Luminous could even respond to his new change, the two were suddenly dragged out of the battlefield and into a pocket dimension of the Necrotic Death Overlord's own creation, finding themselves surrounded by an arid and death-filled land where millions of Undead Legions greeted them!
"Welcome to my Necrotic Realm! This is where you two shall perish and join my Legion!" Laughed the Necrotic Death Overlord.
Every Necrotic Death Lord possessed gigantic Netherworld Realms inside of their Necrotic Cores and Phantasmal Souls. It was a similar form as Divine Realms, where they had to nurture them to grow stronger and improve their cultivation. Of course, it was different in the meaning that for them to grow stronger, they had to devour souls, life, and other undead as well, which all were assimilated into their own world.
"This is… A Netherworld Realm?!" Asked Luminous. Due to his elements, he immediately felt weakened here, and such weakening only got more severe with each passing second.
"You're one resilient bastard, but this is not going to stop me." Frank said with a serious voice. "Luminous, let's go all out!"
"Hah, fine then!" Luminous' entire presence began growing bigger and bigger, as he generated his own Divine Aura and Divine Domain!
FLAAAASH!
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