I don't own DxD or RWBY

-xXx-

Jaune shined in a soft glow as he extends his aura around his body making the blood on his clothes fall of so seamlessly.

The area was dark, giving the illusion that it was night as he rode on a horse made from holy swords. The sounds of multiple horses provided some comfort.

Neither of the twins spoke a word.

They finally arrive at their destination, a castle with a tall wall and a very goth design. From the massive number of footprints, there are two entrances to the building. The main gate, and another gate going underground.

"Jeanne, you take the main gate. I will take the dungeon" Jaune said as he got off his horse.

"Charge in with my Balance Breaker" Jeanne said while patting her horse, "what about you? You don't have a shield."

Jaune simply rose his M16 with a confident smirk

"You know you are ganna pissed some supernatural beings, right? Especially the Stray Bishops?"

"And what makes you say that?"

Jeanne simple shook her and as whipped her horse as it ran off towards the main entrance of the castle, followed by the rest of the Holy Sword Horses.

Jaune checked his gun if it's loaded and inserted a grenade into the grenade launcher attachment. Without further ado, we made his way inside the dungeon…

"ROAR!"

BANG BANG!

Before he can even get inside, two vampires jump scared him, but their skulls broke with a silver bullet…

…ROARS were heard as Jaune ran straight into the dungeon.

-xXx-

Dark. Narrow. And Cold

This is what the eyeless beasts felt about their passageway, and it gave them a sense of safety, comfort, and home.

BANG BANG BANG!

But now it is tunnel chaos as extremely loud sounds erupted within the narrow paths, implying the volume and hurting the enhanced senses of the beasts. And they also can smell blood, their kin's blood.

BANG BANG

Jaune carefully but quickly moved through the dark tunnel, using a glowstick on his hip as his light as the flash of his gun illuminated the entire place.

In each corner, he will peek first to be sure, and immediately shoot any enemy on sight with extreme efficiency. And surprisingly, it has been a smooth ride so far with the sound of his gun disorienting everything.

One peek, one shot. Dead.

Suddenly a huge roar erupted in one tunnel as multiple footsteps were heard as dozens of beasts ran towards Jaune.

But once they turn the corner.

BANG BANG BANG BANG BANG BANG BANG BANG BANG!

CLICK

His magazine emptied as he immediately moved to reload it, but an unharmed beast burst straight at him!

Jaune saw it coming and merely pointed his rifle at it as it impaled itself to the bayonet of the gun straight to its heart

Kicking the thing of his blade, another burst straight at him, and he swung his gun and slashed the beast, but failed to see the one behind it.

"Argh!"

Jaune was pushed to the wall as he guarded himself with his rifle from the monster by the neck. Teeth and fangs tried to lash at his face it snapped and drool splattered at him.

With a simple burst of aura, he pushed the butt of his rifle into the face of the monster, and an audible crack resonated as it landed on the other side of the tunnel.

Jaune took his pistol and shot at it.

BANG!

The loud sound resulted in multiple times screeches as Jaune turned and saw multiple beasts charging at him, but we were stunned by the loud sound.

BANG BANG BANG BANG!

Mist of red appeared as they all died by Jaune's gun.

He then reloaded his rifle and proceeded to go further.

He marched quickly through and noticed that no other beast came for him, just the continuous roaring of pain with the catacombs.

Once in a while, a lone beast will appear but…

BANG

One silver bullet killed it.

Jaune was later greeted by a rather large opening with a figure standing on the middle

She wore a robe with white hair framing her pretty face, red eyes, and a rather smug smile.

Even with a mage robe, the clothe clung to her body making her look like a silhouette of a naked goddess, and her robes end just below her crotch, revealing some gartered stocking while teasing some lace just peaking from the rob.

To be extremely honest, Jaune only has been dealing with Stray Devils today, and he must admit, devils really have a 'devilish charm' as Yang would have put it.

Then again, this world's modest girls are more enticing than the most revealing ladies of Remnant.

Sorry, Yang.

"How crude, to use such a weapon to raid our palace."

BANG!

A silver bullet flew breaking the speed barrier with a clap as it hungrily raced to its target.

But said target raise her hand and the lead stopped inches from her face.

"FWAHAHAHAHAHA" she laughed to her other hand, "is that the best you got? You are using a toy! You are facing a monster which will make human soldiers piss themselves. How do you think a toy can…"

BRRRRRRRRRRR!

Jaune fired.

More than 20 bullets raced to its target, only for it to stop inches from its target and beside the first halted bullet. Soon 30 bullets are seen floating near the target, who is laughing loudly now

"FOOL!" her fangs and her eyes shine with bloodlust as clear as day, "NO WONDER HUMANS ARE THE BOTTOM OF THE FOOD CHAIN! EVEN YOUR PRIDED GUNS CANNOT DO ANYTHING TO A BISHOP VAMPIRE LIKE ME!"

PONK!

Jaune pulled another trigger, as a projective almost as big as a fist flew in an arc from under the main muzzle of the rifle towards it target.

It was not fast like bullets, and it merely reminded the Bishop Stray of stones when humans desperately flee from her.

It was halted beside the bullets like before.

"Hoh? Stone can't do any-"

BOOM!

She didn't get to finish her sentence as the "rock" exploded in a powerful fury and rivaled any hand grenade.

The entire tunnel amplified the sound as the howling of countless beasts was masked as their ears bleed.

Jaune merely covered his ears before the explosion and took cover as the entire space turned into a day for one moment.

SHOOK

The entire castle shook as an extreme force slammed into its very foundation, challenging its integrity, but fail to collapse it.

Jaune peeked at his target and found that she is missing. With caution, he slowly approached where he last saw her which is now covered in specks of heated rocks.

"arhg"

Following that sound, he found the mangled and legless body of the stray. Her entire front was burned harshly as her entire robe is gone and Jaune could already see her organs as her flash was either burned or ripped off by his grenade launcher. Maybe both. Her beautiful face now burned; her babe body now looks like a true corpse.

"Why?" she whispered in despair

BANG!

Jaune continued his journey through the tunnels.

-xXx-

It didn't take long for him to find the staircase going up wards, and it was rather smooth sailing from his last fight, aside from the occasional shaking of the entire castle and the tell tale sounds of Jeanne Sacred Gear going all out.

A knot in his stomach called him. Something is not right.

Dark magic worthy of the praise of Queen Salem blasts straight to the sole blonde in the middle of the room. The floor, pillars, and ceiling near her were covered with holy swords shining in heavenly glory.

As a blast of magic came for Jeanne, a wall of earthly swords erupted, blocking the spell, and amidst the smoke and dust from the impact, dozens of crows made out of holy swords flew to the devil mage.

The devil mage, who was floating feet from the ground defended herself with ease, but as she counterattack with a blast of magic, another earthly wall of swords will appear once again to protect Jeanne.

Such as the battle before Jaune as the stalemate continue to shake the castle. As the side, Jaune spotted a rather buff woman impaled with multiple holy swords as her corpse slowly erode.

Another big shake caught Jaune's attention as the mage decided to blast stronger magic at Jeanne, and the crows always failed to get close to their target as they get shot off from the sky with beams of fire.

So Jaune threw yellow balls at the mage as their ignited in the air, flashing brightly.

Only for Jaune to jump to the side as a blast of demonic fire raced toward him!

"Fool! Do you not think that I have not been observing you all from the start!" the Stray Devil Bishop yelled.

"Worth the shot!" Jaune replied, only to be greeted by more beams of fire.

The pavement exploded as rocks flew in all directions and Jaune jumped around in great distances to dodge to strike

"Stay still!"

"Forget about me?!" Jeanne yelled as she launched more crows at the mage, only for them to be shot off!

"Don't notify her for fucks sake Jeanne!"

"True!" the mage smiled dollishly and smugly to Jeanne, "You could have had me if you didn- argh!" the devil couldn't even finish her sentence as she felt someone unto her by the neck.

"This is how you surprised them!" Jaune said victoriously as she choked the mage as said mage flew around to shake Jaune off.

"Get off!" She said in a raspy voice and blasted magic point-blank range to her grappler, only to be greeted by a flash of white on his skin.

Then she flew fast and slammed him to the wall

"Ouch!" Jaune merely said

BAM!

"Okay that hurt."

BAM BAM BAM!

"Anytime now Jeanne!"

In the mention of the other blonde, and mage snapped at her and found that she wielded a steel bow and an arrow primmed

TWACK!

An arrow that looked awfully like a rapier flew fast as a bullet.

Bam!

And slammed right into the forehead of her target.

As for Jaune, the arrow/rapier pierced through the target's head and grazed his cheek, luckily his aura protected him.

Then he fell.

BAM

"Ouch, okay now that really hurt." Jaune said as he shove off the weight of a corpse on him.

But even with the threat gone, the knot in Jaune's stomach remained.

"Are you OK bro" Jeanne asked

Jaune merely glared at his sister as he moved the corpse off his body and stood up.

Looking at said corpse... again the stray was a beautiful woman or would have been if it not for the holy arrow eroding the once pristine skin of the Bishop.

"We have to go; I have a very odd feeling." Jaune said

"Something evil like Gram in the other side of the room?"

"No. Something too familiar." Jaune finished worriedly as he gripped his sword, and entered the next room.

They were greeted by some stairs and corridors, but Jeanne simply followed her brother as he moved through everything without hesitation, like a dog trailing its owner.

But slowly Jeanne's skin felt a evil power similar to that of the Demonic Swords but with a different 'taste', and with the steady increase of Jaune's pace... it is nothing good.

Upon entering another...
... Jaune pushed her to the side hard.

Bang

As a blast of magic. No. Ki greeted them where they once stood.

"So you all finally arrived" a rather posh and smug voice rang throughout the banquet hall; its dusty and dimmly lit by candles around. Across it was a flight of stairs with three figures stood.

Jeanne focuses on the first two with their obvious vampire get out making them look like a more sinister version of the Addam's Family couple, and the red eyes and evil orb in their hands only confirmed that they are the "big bad"

"Want to observe our experiment, believe me it will get the attention of very one" the man had pale skin with a rather fashionable mustache sh.

"Let me guess, immunity to Holy Objects."

"Yes, but that only step one." And the man smiled sinisterly, "... and thank you."

This confused Jeanne, "for what?"

"For giving us data!" Then the orb projected different images of Jeanne using her Holy Swords against her enemies, "with this and their sacrifice, we now have free feedback in where to improve!"

Jeanne felt shocked and used as she realized what just happened.

She turned to her brother to maybe find comfort but was surprised on the hyper-focus in his eyes, and he was not looking at the images, but at the third person whom Jeanne completely forgotten, standing far from the vampires.

Even without getting a good look, a shiver went down on Jeanne's spine as she only needed to feel the tension between her brother and the third to know, her worries might not be the priority right now.

The third is clearly a samurai wearing a Japanese military formal uniform with a red haori with orange accents. He had his red hair held in a samurai bun with his oni horns poking out, wrapped a black cloth over his eyes, and was clearly holding his sheathed katana tightly.

The vampire lord eventually felt the tension, "oh... bothered that your ki attack missed, samurai?"

"More concerned on the one who detected it and dodged it."

"First time?" The vampire asked annoyingly.

"In this life." But the samurai was barely bothered.

The vampire lord smiled with interest, "well don't hold yo-" but before he can finish his thought...

THUNDER

The samurai dashed to Jaune as a trail of lightning followed him!

Jeanne was too slow to say anything to her brother, but when she turned to warn him...

CRACK!

The ground below him cracked as he disappeared...

...to meet the samurai halfway!

Covered in a white glow, Jaune raised his blade high and slammed it to his target, as said target matched him with a fast horizontal swing!

Longsword met Katana
European Silver clashed Japanese Steel

Aura vs Aura

CLANGGGG!

A bright flash shone where the edges grind against each other.

White and Red lit the dim room; a powerful rattle shook the fighters' bones as they pushed their muscle to their limit!

Jeanne had to cover her face as the strike blew all air around! She saw two shadows in the center of the white and red light push against as said light had weight to crack the old pavement and pillars and blow debris!

"WHAT THE FUCK?!" The vampire lord yelled as he and his queen formed a barrier to protect them from the force! "IT'S THE HEAVENLY DRAGONS!"

No. Jeanne thought as she observed the flashing light. Power like Ki, but not so. Light like an angel's but different.

Then she saw it...
... the samurai smiled animalistically while her brother smiled with excitement.

It scared her.

Then the samurai shined red as his katana glowed in power! Jaune then glowed his sword with aura in response but was weaker.

...and backsteped away from the samurai and swung the air.

An arc of aura was launched at the samurai! He block it with his blade and his hair glowed red, before sheathing his blade and swinging it from the sheath!

A disc of concentrated aura shot at Jaune in neck-breaking speeds!

But Jaune met it head-on!

Jaune swung his sword like a tennis racket, treating the disc aura like a tennis ball!

The hall shook as white and red shone again! But Jaune was pushed back.

Fighting against the aura attack brought so many memories from a lifetime ago.

Training with Ren.
Fighting Tyrian.
Training Mulan

His entire vision turned red with a fraction of his light fighting to the bitter end. He felt he was losing his grip; his joints hurting, his feet dragging and pushing against the force to keep Jaune still!

Something had to give in.

And it did.

CRACK

Jaune felt something broke, but it was not his aura for he still felt its comforting glow, which yelled at him to braces!

BOOM!

An explosion ensued behind him as the force pushed him to the ground and debris flew everywhere!

"Jaune!"

He heard Jeanne worried yell, but he gritted through the pain.

The threat is still here!

He gripped his sword and tried to use it to push him up, only to fall as the blade didn't have enough length to assist him.

Confused, Jaune looked at his sword...

...and saw it broken.

"What are you waiting for Taurus! Finished him!" the vampire lord yelled.

"No!" a concerned voice yelled, "this man is too dangerous! we have to leave now!"

"He his down! strike him now!"

"You are too inexperience to see." and the samurai looked at Jaune with serious eyes, "he is not a downed man, just a cornered Huntsman."

Jaune and the so called Taurus look at one another, as if various emotions spoke to one another.

Respect.

Curiosity.

Fear... Caution...

Competition... Rivalry...

Companionship... Understanding... Remnant.

And a thought came to both as they blue eyes glared to one another, dangerous!

"that is a damn reason why she assigned me as your bodyguard! We have to go now! for the sake of the experiment!"

The vampire lord clicked his tongue as a portal was made, his queen step through after him. and the Samurai soon followed, not after...

"My name is Adam Taurus. Former Leader of the White Fang and somehow ended up here..."

"I know you..." Jaune said, "Blake and Yang mentioned you..."

"Really? How are they?"

"Dead. By old age."

"Hmmm... at least one of us had a happy ever after." Adam merely nodded, "you name, Huntsman."

"Jaune Arc."

"Then I will see you soon..." Adam smiled, but instead of the vicious one he is known for back in Remnant, he smiled politely, "dunno if we have the same pain or goals in this life, but something tells me that we meet often..." and he walked through the portal and disappeared.

"Jaune!" Jeanne yelled as she occupied his entire view! "Oh God, you are..."

"... too tired." Jaune finished, and darkness consumed his vision.

Author's Notes!

BOOM BOOM BOOM!

Suprise on who else is here! Yes, he is here!

I have been planning on this from the very start... and, I will not tell too much or else it will spoil it.

Still surprised no one noticed the reference or easter egg in the story so far.

Adam's Attire is based on the Demon Slayer Corps, and his Haori has the colors of Guston from Beauty and the Beast, only with mote conrasst and Japanese style. I wanted to make his outfit the same as Kazuha from Genshin... but it was too, pure in my opinion for Adam.

but... why is Adam dressed like a Demon Slayer? Later.

Still feel free to suggest for Southeast Asia monsters AND myths, one reader mentioned about a mythical place in Indonesia... oh boy yeah..

ANYWAY!

Merry Christmas everyone!

This is the ending chapter of this Arc, with an epilogue on the next chapter before we go to the nextttt arc.

Anyway. Reveiw. Fav. and Follow!

Stay Safe and God Bless!