My World Traveling System: The Harbinger of Death

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Mochi and Kokoro had fused together, and what emerged from such fusion was…

A beautiful Vampiress of over two meters tall. She had four crimson-red eyes, and four arms, each arm held a large weapon made of crystalized blood, and even black horns grew in her forehead as her long and crimson-red hair waved around by the wind…

"This is the weirdest fusion method I've seen in my life." Said Frank.

No matter how weird the fusion method was, however, the important thing was that the fusion itself was tremendously strong! It exuded an aura of great power from within her, as it looked upon her adversaries with no fear.

She seems to have completely switched her personality, as if a completely new and different person was born now, unrelated to the previous two.

And this was because… it was. Partially.

Clementine smiled at the scene, as Harumi was left surprised after she recovered from the embarrassment that seeing the two sisters kissing passionately gave to her…

"How did they do this? I never thought fusing was a thing." Said Harumi.

"Well, it is. An ancient technique lets you merge your body and soul with your other half. Mochi and Kokoro were the other half of one another as twins, they lived together, survived together, and grew together. For this fusion to be effective, both of those fusing together must be compatible in this aspect…" said Clementine.

"But how was this fusion even born then?" asked Harumi in shock. Clementine smiled back at her daughter as she waved her head.

"Don't you notice this dreadful aura? After they killed so many Yokai, the essence of all of these evil spirits leaked into their souls and fused with them over time. With this, after dozens of years, their entire beings began to harbor a different entity. It was as if they were cursed, yet unaffected by the curse. This curse became a third personality that is only born when they fuse. This is the third personality made for the hatred and evil emotions held by their deepest traumas ana desires, and boosted by the evil energies of the Yokai they had slain until now… She's simply called, Majin." Said Clementine.

"M-Majin…"

"Did you think that I gave Kaguya and Sadako an easy win with these two girls? They showed off to be strong at the beginning but were utterly crushed at the end… but this isn't even their true strength. When they fuse and become Majin, is when they truly become their true selves, and their truest power comes afloat… And whatever lies within Majin is not something that can be handled easily… This is the power of these girl's fusion." Said Clementine. Her eyes shone with bright crimson-red light, as she saw the fused Vampire sisters in action.

She remembered how they fought bravely until now through their lives, and this was the peak of their power as of now. They were lightly touching the realm above demigoddesses already.

Their fusion, merely named Majin, looked at her adversaries. The pupils of her eyes suddenly turned pure black, as fierce cat-like beastly eyes emerged afterwards, her sharp vampiric fangs showed off as her large horns grew even larger, her claws grew sharper, and a furry black tail emerged behind her back, waving around fiercely.

FLASH!

An enormous aura of darkness came from within her. Kaguya and Sadako were left speechless as they saw this enormous Black Sun behind Majin!

"GRAAAA!"

As if she had turned into a wild beast, Majin jumped towards her targets, her dark weapons began to unleash a storm of slicing and crushing techniques, falling over Kaguya and Sadako like meteors from the sky!

BOOOM! BOOM! BOOM! BOOM!

Kaguya and Sadako took the hits valiantly, as they released their powerful attacks and intercepted them!

CLASH! CLASH! CLASH! CLAHS!

"GROOOARR!"

Majin roared like a wild beast, her attacks and weapons were powerful and released shockwaves enough to shatter the earth around! However, Sadako's fists and Kaguya's flames were strong as well, strong enough to shatter and melt her weapons!

CLASH! BOOM! CRAAASH!

"Unnggh!"

Majin groaned in anger, she leaped towards Sadako and tried to bite her neck several times, managing to bite her shoulder sharply with her fangs, piercing Sadako's hard skin!

Sadako, however, smiled, as she gave her a tightly hug and then fell over the ground like a meteor!

FLAAAAASH!

BOOOOOOOOMMMM!!!

Hitting the ground with Majin's head, a loud explosion happened, as Majin's entire body was impacted by this force, all of her bones broke!

CLASH!

Sadako kicked Majin away as the beast began to walk on all fours even with her broken bones, which were already regenerating at a fast pace…

"You're tough…!" said Sadako, as a flare beam reached Majin's back, blowing her away!

BOOOOOMMM!

Majin's entire body was shrouded in flames, as she groaned in pain, but even then, her wounds regenerated at a fast speed, as she continued to exude a strong aura of darkness!

She opened her mouth as a blazing black flame beam came out, reaching Kaguya!

BOOOOOMMM!

"Unnggh…!"

Kaguya was impacted directly, losing control of her technique as it dissipated, the powerful sun putting pressure on Majin disappeared, and she had lost some of her restrains!

"Greheheh! GRAAHAHAHA!"

Majin only laughed monstrously, jumping towards Kaguya with her mouth wide open!

CLASH!

However, Sadako defended her mother, impacting Majin with a strong uppercut and blowing her into the skies!

"Unnngghh?!"

BOOOOOOOMMM!!!

Yet once more, Majin was thrown into the dimension of spatial layers, as Sadako greeted her in a 1v1!

"Come at me!" she roared, as her Divine Aura shaped as a gigantic Oni resembling Shuten Doji! It even had a giant club!

"GRRAAAARRR!"

The wild and beastly Majin leaped towards Sadako, releasing constant attacks against her, her claws were shrouded with black flames that inhibited regeneration and weakened elemental resistance, showering Sadako with terrible burns!

However, Sadako gritted her teeth as she intercepted each attack with her strong body and continued to fight off bravely, her fists fell over Majin continuously, as her Divine Aura Oni Guardian shielded her weak spots!

BOOM! BOOM! BOOM!

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