Vile Evil Hides Under The Veil

Amidst the chaotic tempest of flames and howling winds, Argo maintained his cross-legged position upon a colossal obsidian rock.

His feeble-looking form bore the relentless onslaught of Anfang's World Will, resulting in unceasing injuries.

Throughout his breakthrough, Argo's once-shoulder-length white hair cascaded down to his waist, indicating a unique perception of time compared to the rest of the world. His crimson eyes, though bloodshot and bleeding at the corners, reflected the scenes of devastation wrought by scorching flames and deadly gales.

Argo's dark skin bore numerous ruptures, bleeding profusely. It seemed as though his mortal form was enduring the relentless hammer blows of the Calamity he had unleashed.

His garments were the first to be torn asunder and subsequently reduced to ashes. His flesh began to peel away, exposing the stark outlines of his bones as the elemental onslaught of the Calamity grew fiercer and more unrelenting.

When Argo, through his indomitable will, attained his humanoid form, he appeared to be a mere adolescent, around 14 or 15 years of age. Yet, beneath his youthful visage, his eyes and demeanor exuded a tremendous transformation, rendering him a formidable entity.

This metamorphosis intensified during the Calamity, rendering him even more fierce and untamed.

"Hahahaha!"

Argo's maniacal laughter echoed through the chaos as his demonic form withered in the maelstrom of flames and winds wrought by Anfang's World Will.

The S-Rank breakthrough was merciless, threatening to consume him before he could ascend to this new realm.

"Hahahaha! It hurts like bitch, but who gives a damn."

Argo exclaimed, bloodstained hands smacking his forehead. He gazed skyward, where the darkening, intensifying flame clouds unleashed their fiery deluge.

"Is that all you got? Huh? This Prince ain't scared of shit! I'll fucking devour everything you throw my way." Argo proclaimed, his voice unwavering, capable of shaking the very world around him with its sheer force.

Just as Eren assumed his second demon beast companion was on the verge of succumbing to his deadly injuries, Argo tapped into his signature demonic powers.

Domain of Gluttony.

Igniting the soul fragment of the Demon Prince of Gluttony within him, he harnessed the full extent of his Gluttony abilities. In an instant, a vast Domain of Gluttony unfurled around Argo, stretching for miles. Even as Anfang's World Will attempted to suppress it, this domain-type magic resisted its efforts.

The birth of Gluttony Mana within the domain unleashed a voracious hunger. The celestial flames and bloodthirsty winds that comprised Argo's Breakthrough Calamity were devoured by the insatiable Gluttony Mana, assimilating them into his growing power. Demonic might surged forth, consuming all in its path.

Authority: Devour and Assimilate

The Demon Prince of Gluttony had invoked his Authority, commanding everything within the domain to bend to his will.

The celestial canopy fractured as the Demon Prince of Gluttony harnessed his immense power. The very fabric of space showed signs of damage, birthing manifold mana storms in the vicinity of Argo. At this juncture, a distinctive and resounding mana pulse radiated outward, its intensity suggesting that it might reverberate across the entirety of Anfang.

Eren couldn't speak for others, but he was certain that Demonmir, housing the soul fragment of the Demon Prince of Wrath, would recognize this demonic phenomenon as linked to their arch-nemesis, Beelzebub. Not that it mattered at this juncture.

Argo's ravaged form, teetering on the brink of utter obliteration, embarked on a process of rejuvenation, nurtured by the Gluttony Mana. Organs that had been completely annihilated began regenerating, and shattered bones and ruptured skin gradually restored themselves.

Argo had harnessed the potent emotions of Gluttony derived from the denizens of Anfang through his widespread restaurant chain, Billy's. These emotions served as a conduit for tapping into the Origin Force of the world, allowing him to abundantly consume it and further propel his Ranking Journey.

Above Argo's form materialized a spectral giant griffin, its wings unfurled and an eagle-like scream piercing the heavens. Its expansive wings enveloped a vast area, and its gaping maw devoured the surrounding flames and deadly tempests, converting them into vital Gluttony mana that bolstered Argo's ascent by disassembling the elemental Calamity.

Within mere minutes, Argo's S-Rank mana core materialized, achieving stability and commencing its rhythmic rotation. This marked his triumphant breakthrough into the revered S-Rank. His body, reforged by the Calamity to accommodate such a potent mana core, pulsed with the might of an S-Rank entity. Every fiber of his mortal vessel surged with the power befitting an S-Rank being.

Argo wore a contented smile as he sensed the finality of his S-Rank breakthrough. Unlike other S-Rank entities who needed to invest significant effort and time in stabilizing their newfound status, Argo felt no such burden.

Handling this magnitude of power seemed second nature to him. In fact, even the power of an S-Rank entity appeared inconsequential in his eyes, given that the Demon Prince of Gluttony within him possessed the capability to manipulate thousands of S-Rank entities as if they were mere playthings.

The Calamity enveloping Argo gradually dissipated, leaving behind a desolate landscape. Anfang's World Will, too, gradually withdrew its presence, as if coming to terms with the relinquished Origin Force in its contest against Argo. It appeared that the Demon Prince of Gluttony residing within Argo had successfully seized the lion's share of Anfang's Origin Force.

Over the course of ten years, Argo had only utilized a fraction of the Origin Force for his own purposes, enabling him to ascend to two Major Ranks and solidify his status as an S-Rank entity. By invoking Beelzebub's Authority, Argo had consigned the majority of the Origin Force back to the original Demon Prince of Gluttony.

As Eren approached Argo, the latter was humming a tune while seated.

"Ba ba da da… ba ba da da… And I know you heard the last song about the girls that didn't last long..." Argo continued singing a mysterious tune, growing more attuned to his S-Rank powers with each passing note.

Upon opening his eyes and concluding his song, Argo noticed Eren standing before him. He flashed a mischievous grin and spoke in his characteristic confident manner.

"Yo boss! I'm all set."