While Leo was immersed in the changes happening to his body, changes were also taking place on the other side—within Ram and Rem, who had already completed their reincarnation.
Bat-like devil wings unfolded behind their backs at the same time. The power within their bodies fused with their newly born demonic power, allowing devil power and Oni power to coexist in perfect harmony.
"My strength…"
Ram raised her hands and stared at her palms, feeling a familiar power slowly returning.
It was the strength she had lost ten years ago.
Back then, during the final battle of the Oni village, her only horn had been severed, causing her power to drain away drastically. From that moment on, she could no longer be called the strongest of the Oni.
But now, under the effects of the reincarnation ritual, that power was coming back.
"Her horn!"
Ravel cried out in surprise, drawing Tiamat's gaze to Ram's forehead.
There, a broken horn glowing with white light had appeared at some point. Like a lizard regrowing its tail, it was slowly regenerating.
Before long, the horn was fully restored—sharp and radiant with white light. Rather than looking fearsome, it somehow appeared almost cute.
"It's finally back," Tiamat said, a smile spreading across her face.
Under a reincarnation ritual capable of granting rebirth, Ram's severed horn had finally grown back.
That meant the Ram once hailed as the Reincarnation of the Oni God had returned at this very moment.
"Boom!"
A storm suddenly erupted around Ram, her presence skyrocketing wildly.
"Th-This is Ultimate-Class Devil–level power?!"
Ravel was nearly blown away by the gale. She barely managed to stabilize herself, raising her arms to shield her face, but her eyes behind them trembled uncontrollably, filled with shock.
Ram… possessed power on par with an Ultimate-Class Devil?
How was that even possible?
"There's nothing impossible about it," Tiamat said calmly.
She placed one hand on Ravel's shoulder to steady her. Standing fully exposed within the raging storm herself, Tiamat wasn't shaken in the slightest—in fact, she was smiling uncontrollably.
"The Oni are an incredibly powerful combat race, second only to dragons. Once they reach adulthood, they already rival High-Class Devils. Ram was called the strongest among such a race—how could she not possess Ultimate-Class Devil–level strength?"
That was what made Ram truly terrifying.
Ten years ago, she already possessed power at this level.
And back then, she hadn't even been ten years old.
Not yet ten, yet already matching an Ultimate-Class Devil. That was even more frightening than the bloodline heirs of the Maou.
"In a sense, Ram can actually be considered a Super Devil," Tiamat continued. "Just like Sirzechs and Ajuka—she's an existence that underwent a mutation and transcended her original race."
That was why, even with only one horn, she had displayed such astonishing potential and strength. Before the age of ten, she had already reached the level of the strongest Oni, earning the title of the Reincarnation of the Oni God—even being called the 'One-Horned Oni God.'
That was also why reincarnating her into a devil had been so difficult.
Not only did she already possess power surpassing that of a High-Class Devil, but having reached that level before even turning ten meant her body clearly hid even greater potential. Without an existence surpassing Maou-Class, it would have been impossible to reincarnate her using anything other than a Mutation Piece.
Even for someone beyond Maou-Class, successfully reincarnating her would still require multiple Evil Pieces.
That was the true value of someone who possessed high-tier potential despite not wielding a Longinus and not being a Longinus holder.
Of course, there was another such existence present.
"Mm…"
As Ram regained her strength, an equally astonishing aura erupted from Rem. Her power began climbing rapidly.
Compared to Ram—who possessed Ultimate-Class Devil–level strength even in her normal state—Rem was clearly weaker. Even after reincarnation, the demonic power she released was only around Mid-Class Devil level, nowhere near her sister.
But at this moment, empowered by the Evil Pieces, Rem unconsciously spread her devil wings. At the same time, a white-glowing horn quietly grew from her forehead, causing her power to surge explosively and catch up to Ram in an instant.
However, Rem—now with her horn activated—looked to be in great pain, letting out a muffled groan.
"Not good!"
Tiamat's smiling expression changed instantly.
"Rem!"
Ram snapped out of her joy at regaining her power. Seeing her sister's condition, her face changed as well.
"AAAAAAAHHHHH!!"
The next moment, Rem let out a shrill scream. Her blue eyes turned red, all emotion replaced by ferocity. The power radiating from her body instantly became violent and unstable, surging wildly.
"BOOM!!!"
Before anyone could react, Rem lifted her slender leg and slammed it into the ground.
A thunderous explosion rang out.
Centered on Rem's foot, the ground shattered instantly.
The ground… collapsed.
"Rumble…!"
Amid billowing dust and violent tremors, the secluded mansion—long surrounded by eerie rumors—collapsed under the roaring destruction.
The ground sank. The enormous estate crumbled amid the dust and collapse, disintegrating piece by piece until it was reduced to rubble.
"Whoosh!"
Just before the ground fully gave way, movement stirred within the dust cloud. Tiamat emerged from it, carrying Ravel, and landed at a distance, escaping the disaster zone.
"Cough, cough…"
Ravel coughed violently, clearly choked by the dust, her voice shaking with lingering fear.
"What… what happened?!"
The answer came quickly.
"The newborn power activated Rem's horn, awakening her Oni instincts," Tiamat said solemnly, her eyes locked on the dust ahead. "Rem couldn't control the sudden surge in power… she's lost control again."
As soon as Tiamat finished speaking, the dust was torn apart by a force—and Ram's figure was flung out of it.
"Rem!"
Ram still had the glowing horn on her forehead, violent winds swirling around her. There was no joy on her face now—only urgency as she shouted toward the dust.
From within it, a figure slowly walked out.
"Clang—clang—clang—"
It was the sound of heavy metal scraping against the ground.
Rem emerged from the dust, dragging a weapon behind her.
At some point, a Morningstar had appeared in her hand—a spiked iron ball connected by a thick chain, the handle gripped tightly in her palm. As she walked, it carved a deep groove into the ground.
Just one look was enough for Ravel to tell—the weapon weighed well over one hundred kilograms, possibly even close to a ton.
Such a monstrously heavy weapon should never have belonged to a petite, cute maid like Rem.
But when that petite maid's eyes glowed red and her face twisted with madness, the sight no longer felt out of place.
"AAAAAAHHHH…!"
Rem roared like a wild beast. With her white horn gleaming, she snapped her slender arm, swinging the Morningstar into motion. It became a blur as it was hurled forward.
"Tch!"
Ram clicked her tongue sharply. She stopped calling her sister's name and instead wrapped herself in a gale, retreating at top speed as if riding the wind.
"BOOM!"
The chain slammed down a split second later. The thorn-covered iron ball smashed into the spot where Ram had stood, shattering the ground once again.
"Boom!" "Boom!" "Boom!" "Boom!" …
Rem had fully fallen into a berserk state. She swung the Morningstar again and again, each devastating strike crashing toward Ram. Every time Ram narrowly evaded on the wind, the iron ball pulverized the ground behind her, explosions erupting endlessly.
Dust filled the air. Stones were hurled everywhere. Rem became like a raging berserker, relentlessly smashing the earth. The ground collapsed again and again, quickly turning the battlefield into a shattered, crater-filled wasteland.
"I—I'm going to help!"
Seeing Ram being pushed back and barely avoiding the Morningstar time after time, Ravel couldn't take it anymore. Flames erupted into wings behind her as she prepared to rush in.
"Wait," Tiamat said, still holding Ravel's shoulder. She pressed down firmly, stopping her. "Let's see what Ram plans to do first."
Tiamat's expression had already returned to calm, her eyes burning as she watched the battlefield.
Rem had lost control again—but Ram had also regained her power. Tiamat wanted to see just how much she had recovered.
"No choice…"
Seeing no sign of Rem regaining her senses, Ram realized that continuing to evade was pointless. She stopped retreating, summoning an even fiercer storm around herself as she faced the iron ball crashing down from above.
"Bang!"
The storm and the iron ball collided head-on, unleashing a shockwave that blasted both apart.
"Calm down, Rem!"
Ram landed and steadied herself. Raising both hands, she sent a violent gale roaring backward, tearing through the ground as it surged toward Rem, slicing the earth beneath her feet and causing her to sink.
"Th-That wind is insane!" Ravel exclaimed in shock. "That's magic, right?"
"That's right," Tiamat confirmed without taking her eyes off the battle. "Oni are naturally physical combatants—masters of close combat. But Ram is different. She's not especially gifted physically. Instead, she displayed astonishing talent in magic from a very young age."
"She specializes in wind magic, and almost all of it is self-created."
"For Oni, magic is a field we rarely touch—sometimes never touch at all. That's why the Oni village had countless magic books, most of them treated as spoils of war and abandoned in dusty storerooms, never opened."
"But Ram encountered those books by chance… and was captivated by magic."
She showed terrifying talent. In just a few days, she mastered all the magic recorded in the Oni village's books, then went further—creating countless wind spells of her own and becoming a powerful Oni mage.
"That's why Ram can be considered the Oni equivalent of a Super Devil," Tiamat continued. "Though born an Oni, she lacked exceptional physical ability and instead excelled at magic. It's enough to make one wonder whether she underwent a racial mutation and transcended the Oni race itself."
"Ram also possesses an ability called Clairvoyance—a secret art only she can use. It allows her to share vision with creatures whose wavelengths match hers, letting her see across vast distances."
Tiamat spoke as though she were proudly introducing her own daughter—then abruptly shifted topics.
"Rem, Ram's twin sister, is the exact opposite. She has the ability to learn magic, but her talent in that area is nowhere near Ram's. Even her physical ability was inferior to Oni children of the same age. She was once considered a failure among the Oni."
"For the past ten years, Ram lost her power after her horn was cut. Rem trained relentlessly to protect her sister. Even now, nearing adulthood, she's only around Mid-Class Devil level—far weaker than other Oni, who can rival High-Class Devils as adults."
"But it's as if all her talent was poured into rage."
"Once her horn is activated and she enters an Oni transformation, Rem's power increases at a rate dozens—hundreds—of times greater than other Oni. Her strength skyrockets to rival Ram's."
"However, that power comes with severe side effects."
"For other Oni, transformation only affects their mental state slightly, making them more aggressive. Rem is different. She completely loses her reason, becoming violently berserk—attacking even the sister she respects most without hesitation."
If Ram was the Reincarnation of the Oni God—
Then Rem was the true demon.
In the title 'Oni God,' the 'Oni' referred to Rem.
The 'God'… referred to Ram.
=-=-=-=-=-=-=-=-=-=
You can read up to chapter 195 on patreon.com/NiaXD.