Epic of Caterpillar

"[One-Million Mystical Eyes Arts]: [Devastating Mind-Bending Psychic Blast]!"

Nanako's powers were conjured first, as all the eyes across Loki's body gathered their purple and red light together into a gigantic, psychic attack, shooting an utterly massive beam of pure mind-scrambling destruction!

TRUUUUUUMMMM…!

The beam pierced through the countless of walls made of Death Stone from the Helheim Realm, as Hel's Earthy manifestation was impacted by this utterly devastating psychic attack!

BOOOOOOOMMMMM!!!

The head of her Earthy golem-like manifestation instantly blew into pieces, as a small spark of psychic power managed to reach her very soul. Unlike everyone else's attacks that hurt her soul a bit, this was an attack that sent thoughts and words into Hel's mind through the power of Loki and Mady's Illusion Magic combined with Nanako's Psychic Powers!

"Hel! Please, you have to listen! My daughter, I love you!" Loki cried, her message was short, yet sweet.

"Ungh…! AAGGH! NO… STOP WITH THIS FOOLISHNESS!!!" Hel roared, constantly becoming more and more monstrous.

Her golem-like manifestation body quickly regrew hundreds of arms as she started pummeling where Hel and her siblings were, completely ignoring the two ladies behind her, Brontes and Zehe!

"You've forgotten about somebody, dear!" Zehe smiled maliciously, her beautiful mechanical armor glowed with utterly abyssal and eldritch darkness, channeling the dark divinities of many evil gods that Kireina recruited through her journey. "[Divine Abyssal Eldritch Magic]: [Tentacles Of Azathoth]!"

TRUUUUMM! TRUUUMMM! TRUUUMMM!

Several portals opened, as gigantic tentacles made of pure darkness and void slammed against Hel's manifestation, making half of her entire body immediately crumble apart!

CRAASH! CRAASH! CRAAAASSSH!!!

Crack… crack!

"It is rude to ignore us, you know?!" Brontes fiercely roared. Channeling the might of the many cyclops she had recruited within her tribe now, alongside the power of the three Cyclops Gods and her own daughter, of course, the little Vudia. "[Divine Ore Magic]: [Celestial Gold Manifestation]! [Divine Supreme Lightning Arts]: [Heaven's Lightning Judgement]!"

A combination of both powers was quickly summoned, as Vudia's powers channeled into her mother's body, as two enormous golden fists surged from her hands.

"There we go! This is El Dorado 3.0!!!" Vudia celebrated cheerfully, as her mother charged the two gigantic fists with her Divine Supreme Lightning Magic!

Both fists impacted Hel's body devastatingly, like endless fists attacks that made her crumble apart constantly, without giving her a break at all!

CRASH! CRASH! CRASH! CRASH! CRAAASH! CRAAAASH! BOOOOOOMMMM!!!

"AAAAGGGH…!"

Hel couldn't help it, as her biggest manifestation couldn't keep itself in form with all these blows, falling into pieces! Her soul once more gained a few more cracks with each blow, making her mental state even more vulnerable to Loki's mind attacks with the help of Mady and Nanako!

"Once more! With your help this time!" Loki said. "My dear sons!"

She quickly touched the bodies of Fenrir and Jormungandr as she rushed towards the manifestation of Hel in the ground, her enormous face being there, shooting lasers everywhere, as Wagyu and Kekensha evaded the attacks and unleashed magic explosions of their own to keep on her check, barely.

"[Supreme Divine Psychic Mind Arts]: [Primordial Mind Burst]!!!"

Channeling the might of Mady and Nanako, while temporarily fusing her will with Fenrir and Jormungandr, Loki unleashed yet another psychic beam, which swiftly impacted the largest manifestation of Hel!

FLAAAAAAAAASSSSSHHHH!!!!

"UUUAAAAGGGGHH…!"

Hel screamed in agony as her mind barriers were once more easily penetrated by this psychic attack. The thoughts, words, and love of her mother and siblings reaching the deepest of her psyche!

"Hel, please, you have to stop! We love you!" Fenrir cried.

"You're our dear sister, we want to protect you, to stay at your side!" Jormungandr said.

"I know I don't deserve any pity, nor even your forgiveness, but please, do it for your siblings, for them! They've always been there for you, dear! They've always been loving you and protecting you! Don't neglect the bonds you've created with him! The Necrotic Ruler is controlling your mind! He doesn't love you nor care for you… He only wants to use you as a tool!" Loki screamed.

"N-No… STOP! SHUT UP…! Ugh…! SILENCE…!!!"

Hel's mind was already giving in, with each word, she was finally beginning to realize the truth. Her mind, which was already being possessed and brainwashed by the Necrotic Ruler was beginning to return to normal, slowly!

However!

"RAAAAAAHHHHH!!!"

An eldritch roar echoed from within the depths of Hel's soul, unleashing a terrifying, all-powerful shockwave of Necrotic Energy and throwing everybody else away from Hel's manifestations!

TRUUUUUUUUUMMMMM…!

"Guuuaaah! W-What is this now?!" Rimuru cried, landing on the floor alongside everyone else.

"W-What is this presence?!" Nesiphae was shocked. "This is something even more terrifying than Kireina's mother…"

"Oh, I know who it might be…" Zehe sighed. "The eldritch being behind all of this battle, behind all of this war!"

"So you've finally come to confront us." Brontes smiled.

"It is him…" Wagyu said.

"Lord Fenrir! Are you alright?!" Kekensha wondered.

"I am!" Fenrir nodded. "But this being… This is the bastard controlling my sister!"

"YOU!!!" Jormungandr hissed furiously.

"Grandpa's so angry…" Yiksukesh was surprised as well. "He must be someone despicable…"

"More than you imagine, dear." Loki frowned, completely serious, and furious. She was finally meeting the bastard that took away her daughter's mind.

The entire Realm of Helheim started gathering around, transforming. Hundreds of tentacles appeared everywhere, and so did red eyes. It was as if the whole Realm became a single, unified entity!

The vessel of a supreme ruler of the realm of phantoms, ghosts, undead, and the eternal end of all things, death!

It was the Necrotic Plane Ruler.

FLAAAASH!

A single, red eye opened in the middle of the desolate landscape, glaring at everyone with fury.

"You pathetic vermin! Do you truly believe you have the power to take Hel away from ME?!"

The monstrous, eldritch voice of the Necrotic Plane Ruler echoed everywhere, so powerful and strong that it sent shivers down the spine of everybody, even Rimuru that didn't had one!

"I won't let you hold into her any longer, you bastard!" Loki roared.

"She's my perfect VESSEL! We were made to be together… FOR ETERNITY!" The Ruler laughed. "And NOBODY will separate US!"