The Protagonist's Sister Is Actually The Strongest

Just like before…

“{Heavenly Myriad Blade Arts}!”

Anna’s aura surged, transforming into a spiraling galaxy of pink flames shaped like countless cherry blossom petals. She looked beautiful and majestic—yet to Lucifer, utterly terrifying.

“{Blazing Loving Embrace}!”

Dozens of Demonic Beasts before her were sliced apart by her blazing swords. Their wounds did not bleed; instead, they leaked vast quantities of black-and-red demonic energy.

In a sight Lucifer still struggled to believe, even on the second viewing, the beasts’ monstrous bodies were shed entirely. Smaller demon people tumbled from their husks. Purple portals opened beneath them as Anna deftly teleported everyone to the safety of the Purgatory Realm. She then reached Lucifer, Gram held firmly in her hands.

“Gram! Unleash all your power! Time to feast!”

“{Celestial Dragon Blade Mode} + {Demonic Dragon Blade Mode} = {Harmonized Dragon Mode}!”

FLASH!

“{Heavenly Myriad Blade Arts}!”

Lucifer’s countless eyes widened, his faces twisting in horror as he watched Anna’s draconic sword transform. A black dragon and a white dragon manifested, swirling together before fusing with Anna’s Egos into a massive black-and-white blade that glowed with cosmic, demonic, celestial, and ki energies.

Anna’s very soul merged with Gram in that moment. The surge of power awakened him. His eyes opened as he realized what was happening.

[“Anna…!”]

“Let’s go!”

“{Cosmic Dragon-Devouring Soul Blade}!”

“S-STOP!”

Lucifer tried to escape, to do anything at all.

But he could not.

The Heavenly Empress stood above him, Song below, the Demons behind, and Anna at the front. He was completely surrounded.

In that instant, he desperately tried to pull his demonic soul back to his true body, finally surrendering.

But…

“UGH?! I-I CAN’T?! NO, I CAN, BUT IT’S… TOO SLOW!”

He realized everyone was now enclosed within a giant bubble of cosmic pink and golden flames of Hope and Love. Anna had reshaped her {World of Hope} into a domain specifically to trap him.

He was too strong for her to stop his escape entirely, as she had done against the King of Steel. Yet she could slow the process dramatically, buying herself precious seconds.

SLAAAAASH!

“Kuuaaaaaaaaaaaaaaaaaaaaaagggh!”

Lucifer screamed in agony as the titanic blade tore through his vessel, splitting him in two. The strike also savaged the portion of his soul attempting to flee the domain.

It was not his entire soul, but a large chunk—perhaps a fifth—had been sliced away with merciless precision.

“M-My soul...?!”

Lucifer was terrified, horrified, and shocked beyond belief. He screamed like a child who had scraped his knee for the first time. This kind of pain had never existed in his mind until now. He had never been so humiliated—so pathetically, utterly humiliated.

“How dare you...! HOW COULD YOU DO THIS TO MEEEEEEEE?!”

As he shrieked in horror, Gram’s aura devoured his vessel piece by piece, reducing it to nothing in mere seconds.

The fragment of Lucifer’s soul that had descended into the vessel tried to flee, now missing nearly half its mass.

“Where do you think you’re going, you damn bastard?! You murdered my father! DO YOU THINK YOU’RE GETTING OFF EASILY?!”

“Uuuggh?!”

Lucifer cried out as two titanic hands seized that portion of his soul and dragged him back to the center of the battlefield.

It was Song.

Channeling his powers to their absolute limit and applying temporary Matter Manipulation directly to Lucifer, he gripped the demonic cosmic soul without incinerating himself in the process.

Lucifer’s shapeless soul—resembling a humanoid form that twisted into countless beasts—groaned and screamed as countless spears of light pierced him.

“{Heavenly Imperial Armament Creation}: {Soul-Sealing Holy Spears of Hope}!”

Dozens of gigantic, hundred-meter-tall white-and-golden spears impaled him. Each one sealed away a small fragment of his soul. It was not enough to stop him—only to slow him down. For their purposes, that was more than enough.

“Lucifer! We all have a gift for you before you go back home, you fucking piece of shit!”

Astaroth and Aim’s combined voices thundered from behind him. Lucifer glanced back in horror at the damned demons.

“Here, please take our gift! We spent all our savings on this, CRAH!”

Agares and Neberius’ fused form roared as their shadow aura swelled, merging with Astaroth and Aim’s flames and thunder.

“I’m sure you’ll fucking love it!”

Jeremias and Bael’s fusion laughed while compressing space within the swirling mass of elements, forming a giant sphere of chaotic, self-destructive forces.

“RAAAAAHHHH!”

Legion and Nemesis roared in unison. Their giant mechanical hands unleashed hundreds of laser beams that fed into Jeremias and Bael’s spell.

“PLEASE! TAKE IT BACK HOME AND MAKE SURE TO SHARE WITH YOUR FRIENDS!”

Their voices echoed as one. With all their strength, the demons hurled the massive sphere forward. It struck Lucifer in an instant.

RUMBLE!

“UGHHH?!”

The sphere sent him flying. It twisted and warped space itself, tearing through his incredibly resilient soul despite the vast gap in power.

“H-HOW IS THIS POSSIBLE?!”

He noticed pink and golden flames burning within it. Love and Hope, carrying the dreams of all demons, had elevated them far beyond their former limits.

As Lucifer was hurled skyward, Anna, the Heavenly Empress, and Song chased after him. Like a unified rainbow of gold, pink, and red, they slammed into his soul through the Demonic Spatial Sphere.

“LUCIFER!”

“YOU’LL PAY!”

“WE’LL NEVER FORGIVE YOU!”

With ferocious roars, their auras mixed and merged. Countless Egos manifested, converging into a single massive form that loomed above them all.

“AAAAAAGGGGHHHHH!!!”

Lucifer could do nothing but scream as the domain shattered under the force of his soul being propelled toward outer space.

Anna’s swords struck the sphere relentlessly, pushing with all her strength while she stacked multiple Martial Arts to generate overwhelming pressure.

The Heavenly Empress unleashed her full Karma Power—still developing—manipulating the fundamental laws of all Murims and channeling them into her katana. She swung upward with everything she had.

Song compressed his Matter Manipulation to its highest limit, his blazing fists beginning to tear the very fabric of space.

The sphere of chaotic energies reacted violently, driving deeper and deeper into Lucifer’s true soul.

“W-WHAT ARE YOU TRYING TO DO?! H-HAVEN’T YOU HAD ENOUGH?! AAAAAGGGHHH!”

Lucifer tried to fight back, but the searing pain overwhelmed every sense. The prideful King of All Evil could only scream endlessly.

“FOR WHAT YOU DID TO US…!”

“WE’LL NEVER FORGET YOUR FACE!”

“IF YOU EVER COME BACK HERE…!”

Their voices merged into one as the titan formed from their auras turned deep black. Enormous feathered wings spread wide, sharp crimson eyes gleamed, and a long, razor-sharp black beak appeared.

“AAAAHHH…?!”

Lucifer’s face twisted in utter horror.

It was him.

The man he had wanted as his pet.

That amusing crow.

The one who started this entire battle.

The one whose death had driven these three to such lengths.

Behind the massive crow, countless visions manifested. The power of {World of Hope} burned at full strength, fueled by the Love and Hope of Bestia itself. The world’s greatest villain had become a weapon against an evil far greater than his own.

“Y-YOU BASTARDS! STOOOOP!”

Lucifer struggled desperately, pushing back with all his might.

But they would not yield. They could not afford to.

Together they roared—their wills, their hearts, their souls becoming one, united by the memory of him.

The Heavenly Demon.

Han Zhenye.

His final technique, the pinnacle of his long and arduous path, was unleashed at full power. The titanic form swung its fist toward Lucifer alongside the fists of his beloved family.

“{ULTIMATE PINNACLE}!”

A single point of black-and-white light compressed to its absolute limit, piercing through the fabric of reality.

Even if only for a fraction of a second…

BOOOMMM!!!

The explosion was so devastating that even the Void Ruler present in this world turned its gaze toward it, feeling genuine threat for the first time.

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