Author Notes: The first half is mainly a day in the limelight for the Ishida family, going into the backstory and hinting of their importance within the fanfic.

I thought since Ryūken used a technique named Piano, that he'd have a music game motif and with Uryu, being the Antithesis to Yhwach, I went for an Anti-God motif for him.

Poor Keigo and Co, but it's to highlight the dangers of the Dio Hueco, who are demonstrating more and more of their unnatural abilities.

The title is based on the whole Aztec theme the Dio Hueco have, and each one will have their backstory told to varying degrees.

Chapter 40: Chauitstli in Teotl (Plague of the Gods) 1


Karakura Hospital

Meanwhile while Kazui gotten out of the barrier...

Ryūken proceeded to walk out of the room.

"Why are you leaving? It's that...abomination that's causing this mass genocide...," Uryū asked his father.

"I was supposed to be the last Quincy...yet now, I sense more appearing...I was wrong about what Sōken's words...I had thought the Quincy would not be a profitable pursuit and that the living could be saved with my medical knowledge alone...now, I have to fight because everyone is dying and that if he's not stopped, he'll go after the dead as well...take care of the hospital for me...," he spoke to his son.

"You never really gave up on the Quincy did you...?," Uryū said with a scoff.

"You live for your mother's sake...I've already provided with a means to take down that Emperor that corrupted our people...now to take care of the root of the evil.," he said as he used Hirenkyaku to speed out of the hospital and into the sky.


Karakura Town

Several humans had been struck by the diseased Reiatsu, leaving all, but the Kurosaki and certain individuals remaining alive for some unknown reason.

"Mizuiro...this ain't good...," said the graying haired man, whose hair had been previously brown beforehand, his eyes were bloodshot and he had lost all, but two of his teeth.

"Mr. Asano...whatever did this...is gonna pay...," said the other adult, having lost his hair, his sight, his tongue swelling to extreme proportions and boils under his neck.

"Fuck...I can't die...," said Reiichi, a tall man with bleached blond hair, three earrings on his right ear and a ring on his lower right lip.

The three men along with several hundred humans all exploded into pools of blood, with their Souls being sucked up into Chalchu with breathed in like a vacuum.

"I'll save the brat's family for last...now to-," said the Dio Hueco before he was suddenly side-kicked by an incoming Ryūken.

The Dio Hueco's head had been twisted 270 degrees to the right from the impact.

"I didn't think a Quincy would aid humans...I thought you all aimed for a deathless utopia...," Chalchu said as he twisted his head back to normal.

I'm not sure what this power truly is, but I'll do what's comfortable..., thought the white haired Quincy.

"More like the others wanted it- I just wanted to not deal with Hollows anymore.," Ryūken explained.

He then fired an arrow with one hand, which the Dio Hueco summoned a Reishi indigo barrier to block.

"Klaiver (Piano).," he said as he fired multiple arrows at once.

"Useless...that would've worked against a Hollow, but I have transcended that...," Chalchu explained.

Ryūken gritted his teeth as he did a wave gesture as his shadow extended, firing arrows into the blackness.

Chalchu turned his head to the right to easily dodge the arrows emerging from his shadow.

Chalchu then used an impossibly fast technique to get behind Ryūken, intending to arm chop his head off.

However, the neck wasn't cut as a blue six petal flower star appeared on his neck.

"I have inherited all of the old Quincy techniques...including the Blut...," the white haired man explained.

"Ransōtengai (Disheveled Paradise Puppet).," Ryūken said as he summoned blue Spiritual Power strings to attach to his body.

Suddenly, his movements became more precise and powerful, hitting the Dio Hueco enough to spew dark purple blood from his mouth.

The Dio Hueco went- "Gobble, Gobble" with a snarl as he noticed his body had bled.

Ryūken thought back to his past.


Years Ago...

A young Ryūken looked up at a man with dark gray, mane like hair, a dark gray mustache and glasses. His eyes were deep gray and he had a bit of a beard of his chin. His skin was wrinkled with age and he had pronounced cheekbones. He wears white Quincy clothes underneath a brown tunic. Sōken Ishida, his father, the last of the original Quincy that used the first edition of techniques from the lessons Yhwach taught.

"So...this will be a technique that can aid the Emperor when the time arrives...I mean he exists...right...?, asked the youth.

"I am old and I am not one of the chosen ones...so we have this technique to compensate...," the old man said with a weary sigh as he generated blue Reiatsu strings that attached to his body.

"A high level technique which allows the user to control their body parts using strings of Spiritual Power controlled by their brain, forming lines or strings made of Reishi. Using this technique, the Quincy can control their body like a marionette, allowing them to move freely despite the impairments of paralysis, broken limbs, or any other force which would impede normal movement. It was originally created to allow elderly Quincy to fight effectively, but lately...it's all that the Quincy of this generation can muster...," said the old man.

"Letz Stil...is a slightly greater technique, but it comes at a great cost...the loss of your powers...," he added.

"What about the Vollständig?," asked the young boy.

"It's a technique only the chosen can wield- the members of the Quincy King's royal family..and their fate...," Sōken replied, as if it pained him to have Ryūken acknowledge this fact.

"Young master...," said a girl with black hair and wore a maid's outfit.

"Yes, Kanae...," said the boy as he came to her side.

Sōken then saw a large, muscular man around size with perpetually closed eyes, long silver combed back hair tied into a ponytail that reached his waist a strong jawline and several burn marks on his skin- For the sake of sparing the he pulled up his large shirt collar to cover his mouth. Kazui pouted because he liked the nightmarish appearance it gave him. His attire consisted of the traditional Vandenreich uniform, though his had a dark silver, large overcoat that draped over his shoulders.

Sōken used Hirenkyaku to get behind the large man.

"Mawarini Ishida Kurosaki...my brother...for me to use my Licht Nach Vorn (Light Forward) on you...or should I call it Hirenkyaku like the other bastardizations the Quincy call our techniques ..what happened...," asked the larger man.

"Ransōtengai...that I can agree with you...Gotteshand (God's Hand) was like God himself was using his fingers to control our fates...now it's referring to a chaotic delusion that we can control anything...," Mawarini said back, while caused both to have an earnest laugh for a moment, but was cut short when the larger man's skin began to turn to smoldering black.

He removed his shirt collar to reveal a one notable burn scar caused his nose/mouth area to be burnt to the point that the white nose/mouth skull pieces were exposed, he bled as he held a small girl with wavy brown hair in his arms.

"You didn't...," Sōken asked as the large man lowered the girl onto the ground.

"I wasn't able to kill Yamamoto in this lifetime...The Kurosaki Echt Clan will raise her so she may continue our legacy...they are your neighbors and my wife's family...for the New World, she must survive...," he said as he proceed to crumble to ash. The Reishi from the ash was then absorbed into the girl.

Sōken looked down on the ashes with pity as Ryūken came to his side.

"They have a tendency to be drawn like moths to a flame, believing themselves to be invincible...," said Sōken with remorse and tender tears.

Ryūken then looked at the unconscious girl that he would later know as Masaki with curiosity.


Present

However, Chalchu adapted to the rhythm of Ryūken's odd movements, outpacing and delivering a roundhouse kick to the groin.

Ryūken, bleeding from the mouth, then released a massive amount of Reiatsu as he declared-

"Letz Stil.," he said calmly.

His bow had fused with his right arm, as white armor covered his left side, he gained a silver shoulder armor with the symbol of the blue Quincy cross, with cloth containing parallel blue lines and a blue flame-like object resembling a quiver of pure Spiritual Power formed on his right shoulder, collecting the little Reishi the Human world still possessed.

"Farewell, Hollow...," Ryūken said coldly.

Ryūken then proceeded to blitz at Chalchu, but the latter then did a closed eye tear wiping gesture on his face.

It caused his head to generate a turkey skull mask with completely white, downturned eyes with black rings, green feathers and red atomic markings.

Before the silver haired Quincy could react, the Dio Hueco punched him through the gut.

Ryūken took an opportunity to hit him at close range, but suddenly Chalchu generated four more arms.

"I'm more evolved than before...didn't you hear...?," the turkey masked Dio Hueco said with a distorted, turkey bird like voice.

He then proceeded to barrage punch Ryūken to the ground, creating a massive crater as he did so.

"Farewell...last Quincy...," Chalchu said as he removed his mask and his extra arms vanished.

Ryūken then got to his feet...

Kanae...Uryū...Mizuryū...even you father...I'm sorry..., he thought as he then took a stance as his Reiatsu took an even larger increase.

"I didn't want to use it...I mean it would be rejecting the old ways...no matter...," Ryūken muttered to himself.

"Vollständig- Großes Schema Gottes (Grand Scheme of God).," said Ryūken as he was covered in a Reiatsu that was pale blue, covering him and dissipating to reveal that Ryūken was wearing a set of white samurai armor with wings on his back made of pale blue Reishi, he wore a draconic themed helmet and wielded a solid white bow with odd black squares organized like piano keys.

"Noble Japanese Spirit eh?," Chalchu remarked sarcastically.

"No, I was always told...that I had a talent for the piano.," Ryūken explained as he touched one of the squares, which fired an arrow.

This made him recall when he played the piano for Kanae for the first time after they got married, but he quickly focused back on the fight.

Chalchu seemed to believe it came straight forward, moved an inch back, but then it vanished and hit him from the right from a 70 degree angle at the ankle.

"I see...," Chalchu said as he noticed the grid pattern of blue Reishi on the ground, some spaces being blue and others being vacant.

"So it's like a game of tic tac toe...I'm not into games...," Chalchu said as he then generated an indigo Reishi bow to Ryūken's shock.

"Zeichen der Pest (Mark of Pestilence).,"the hooked nose Dio Hueco explained as Ryūken's chest proceeded to emit an indigo bullseye to which the indigo arrow that was fired, connected with and caused an explosion of indigo Reiatsu.

Ryūken, blurry eyed and having a hole in his chest, he fell to the ground, slowly crumbling to white ash.

"You didn't expect a Hollow to use a bow to make you have a hole in your heart...the irony is sweet...," said Chalchu with a smirk.

"I am the last Quincy...of this generation...," Ryūken said as he dissipated.

"What the-," Chalchu said as he was suddenly sucker-punched to the side of a house.

Uryū and Mizuryū, both looking incredibly cross at the Dio Hueco, gave looks of silent farewell to their predecessor.

As a Quincy...I unintentionally failed to save lives because it would upset the balance through the destruction of Hollows...so I focused on saving the living instead of the dead...as a doctor...I have to intentionally let people die for the sake of the balance, using flawed human techniques instead of the Quincy tools as it cause too much controversy if I exposed the world to the afterlife...so I'm actually more responsible for murdering humans than I ever did as a Quincy...And I had to repress my anger towards Ichigo who's actions contributed to Masaki's death...I know Yhwach did it..., but it was just an inevitable catalyst for his reveal...his recklessness caused her demise...So I had to be cruel and controlling to Uryū, my one connection to Kanae so he wouldn't grow into a rebel...yet he did so all the same...I'm a failure..., but seeing you now...I did something right..., Ryūken thought as he completely faded away.

Chalchu smirked as he walked to Ryūken's ashes and grounded them with his feet.

"Always a failure...," the Dio Hueco said cruelly as he then went for an arm chop and unceremoniously gave Uryū a slash that caused a hug cut that caused a lot of blood to spew out.

Suddenly, he was the one had the huge cut while Uryu was fine.

"The Antithesis... can designate any two targets and completely reverse anything that has already occurred between the two of them. Since you injured me...I reversed it so you'd receive the damage instead...healing myself while giving you the damage you intended for me...though to be honest, I wished it didn't have to specifically involve me...because you should've been the one who was turning into dust.," Uryū explained.

"Take my bloood!," Chalchu said as he spat on Uryū.

"Yes...the blood contains my Reishi and I can increase the lethality of the technique-," the Dio Hueco gloated.

"Compared to Askin, you're much more clumsy...as expected of a mummy that should've died years ago...," Uryū said as suddenly the blood clots vanished.

Chalchu looked stunned and confused.

"There are two types of Quincy- it came into my head suddenly as I spat out that creature...they were once a united clan, but then your partner convinced us that some were better than others and needed to marry with similar superior Quincy lineages to maintain the abilities. So they were divided into Gemischt (Mixed) and the Echt (Real), further dividing the Quincy that had been separated into creation and destruction..., but interbreeding actually led to a less pure and controllable population...by marrying outside of the lineages...it began to get strong again...the Auswählen wasn't able to affect me due to this like so many of my brethren...," Uryū explained.

"So you're proud to be a mongrel?!," Chalchu snapped as he fired an indigo Cero at Uryū who didn't even block the attack, as it just dissipated on contact with the Quincy.

"How?!," the Dio Hueco asked in confusion.

"I now know more things than I did before for some reason...and I'm unfortunately more adaptive to these changes in our being than my father...my son is as well. I know that you said you were above that sun Hollow God that would've obliterated this town in one blast had it not been for divine intervention...and I suspect that it's not a power rank system...it's a hierarchy of respect- like humans do. In fact, I think you're one of the weaker ones...," Uryū said as he pressed his glasses to his face.

This caused Chalchu to grit his teeth in anger in response to Uryū's action- emitting a Reiatsu that tore his upper outfit to expose his torso.

He grew indigo feathers, some of which, he plucked out of his body and placed on the ground.

"Chǎn luǎn (Spawn).," Chalchu said as the feathers grew legs, wings, bulging eyes- one after the other, a neck, a body and finally a head in a slow and nauseating manner.

They then became turkeys made of indigo Reishi...that proceeded to wander away to Chalchu's annoyance.

"Turkeys...I'm going to fighti turkeys summoned by an ancient Hybrid Hollow god..be careful, they might dangerous regardless of their...weirdness.," Uryū said with disbelief.

"Disgusting...I should have Tanūki get rid of such filth born through such a repulsive method.," Mizuryū said as he pushed his glasses to his face while grimacing.

"Wait?! You are insane?! For one thing, I don't want you associating with a thug's son for a friend and another, he's a human being and these are Hollows that I didn't even know exist- that I don't even know the full scale of what they can do!,"Uryū said with an undertone of anger.

"He's my lackey! Of course, he'd be willing to fight on my orders.," Mizuryū corrected his father.

"This isn't a game! ," Uryū snapped, ignoring Chalchu.

"Is mother going to be ok...?," the boy asked earnestly, concerned, dodging the earlier subject.

"She's sleeping at home...I'm not letting him get his hands on her...," Uryū said with a scowl.

"Fool..I could easily get to her at any moment...your comedy act is what is keeping me from making this into a tragedy...," Chalchu giggled.

Uryū then used Hirenkyaku to get behind the Dio Hueco.

"Don't threaten Ryō.," the bespectacled Quincy said back harshly.

"If I were Abeseimei- I'd have raped her, but I'm respectful enough...to not indulge in bestiality.," Chalchu said nonchalantly.

Uryū then used the move again to blitz kick him several times into an abandoned building.

"I see you can use the Licht Nach Vorn, which can- oh shit it's called Hirenkyaku (Flying Bamboo-Blind Slide)...it sounds so lame in comparison.," Chalchu remarked.

"What's this Lich thing you refer to?," Uryū asked.

"For someone who likely prides himself as a Quincy, you don't know that it's...tell me what you do know...," said the Dio Hueco as he generated a doctor's coat over an indigo turtleneck sweater over his upper torso.

"Let I'd tell the enemy-," Uryū scoffed before Mizuryū interjected.

"It's an advanced Quincy technique, allowing the user to move at high speed by riding on the flow of Reishi created below their feet. To perform this technique, one gathers Reishi under their feet and ride them to their desired location. It was the origin of the Sóndo and Shunpo techniques, which the the latter were just imperfections. It can be used to hover or fly over long distances. One can keep up with and out-speed faster enemies depending on the users' mastery. It's more than just moving really fast. One can create a platform beneath their feet, to stand in space or elevate them to higher levels when speed alone can't reach such high altitudes.," Mizuryū explained, which earned him a punch to the head.

"Now he knows-," Uryū scolded the boy before Chalchu snickered as he picked up Ryūken's glasses, the only thing that remained of his being, transforming its size to fit his head.

"Let me give you a real history lesson on this and Schatten Dahinter (Shadow Behind)- the Yin and Yang of the Quincy.," the Dio Hueco said.

"That doesn't belong to you...," Uryū said coldly.

Chalchu ignored the threat and continued as he pushed his glasses and summoned a Reishi board showing images of a Quincy.

"Licht Nach Vorn is actually a technique that controls time and space...and the Shadow can actually control dimension itself..listen boy if you want to learn..," the Dio Hueco explained with Ryūken's voice with a mocking tone, which angered Uryū even more.

"Vollständig- Sorath -Antithese Gottes (Antithesis of God).," Uryū said as he released a dark blue Reishi that was more like a slowly rising water spout than a quick burst of exploding heat like most transformations. Space began to distort as eyes with three irises glowed red.


Next Chapter: Chauitstli in Teotl (Plague of the Gods) 2