Zaaap~!
All 12: AAAAAAAAARGH!
After Akuma Castle's sudden arrival, Ryueki's body was split in half and the portal into his soul opened, upon it's opening Akuma Castle began to charge itself with huge volts of electricity before zapping it all through the portal.
And into the twelve Kaneki's inside of Ryueki's soul.
Higanbana girls: W-WHATS HAPPENING?!
All of the Higanbana girls were in complete shock (no pun intended) with the sudden turn of events.
Itsuki: W-Whats Akuma Castle doing here?!
Keiko: And what's it doing to Kaneki?!
While Kaneki's friends were in panicking.
Querxes: So it's begun, hang I there Kaneki.
Kirin: you can do it, overcome it.
Both Querxes and Kirin were calm and showing support to Kaneki, and this was immediately noticed by them.
Sachi: How come you two are calm about this?!
Chikao: Don't tell me?! You two know what's going on?!
Querxes: Correct, we do know what's happening right now.
Natsuki: What's happening?! Tell us!
Kirin: it's a test.
All 5: A test?
All 5 of them were surprised by their answer.
In the Higanbana residence*
Meanwhile inside Kaneki's home, the same thing happened between Shino, Yuuka and Miku and the announcer.
Yuuka: what do you mean by a test?!
"Calm down, Calm down"
Shino: How can we be calm when Kaneki is being zapped with deadly amounts of electricity?!
Miku: Yeah! He may be powerful and all but he's getting hurt!
The three of them were furious after seeing the 12 Kaneki's being hurt.
"Just calm down girls, let me explain what's happening"
All 3: ...
The three of them then quiet down and listened to what the announcer was going to say.
"Good, the test given to Kaneki is a simple yet very difficult test. He needs to overcome two thousand years worth of trauma"
All 3: What?!
Back in the Stadium*
Sachi: What do you mean overcome?!
Static!
Everyone: Huh?
The Jumbotron started to show static and then.
"Everyone... No... No! No! No! No!"
A memory that didn't belonged to Kaneki appeared, one showing a destroyed village and countless bodies.
Flash!
"Please... Don't leave I don't want to be alone"
"Mamaaaaa! Papaaaaa!"
And many others began appearing.
Natsuki: W-What? Are those memories?
Querxes: sigh~ that's right.
Kirin: Akuma Castle isn't just the base of the Demon Knights, it's also an archive. It has all the memories of the Demon Knights, every one that lived throughout history from the original 7 to the most recent one Kaneki.
Chikao: isn't this too cruel?! It's giving Kaneki the pain of his ancestors! He's just going to suffer more!
Natsuki: That's right! How can you let this happen?!
Querxes: Umm... What are we supposed to do in this situation exactly?
Both Querxes and Kirin were surprised after Natsuki yelled and questioned them.
Kirin: there's no way we could prevent this, as strong as we are. There's no way we could stop Akuma Castle.
Zap~
Kirin: oh looks like it's done.
The Continuous zap of electricity had completely stopped.
"AAAAAAAARGH!"
But the memories still flooded Kaneki's mind.
Querxes: the upload is complete, Kaneki now has every memory of every Demon Knight in history now.
Kirin: he now needs to overcome them, or at least use them in some way or another.
Natsuki: What if he goes mad?
Natsuki asked worriedly.
Kirin: all we can do now is hope he doesn't.
Ryueki: HAAA~! HAAA~!
After the continuous zap ended, Ryueki's two halves came back together and the portal into his soul had closed up.
Ryueki's thoughts*
(Damn you! Damn you! Damn you! How dare you humiliate me like this!)
He felt even more humiliated and furious after he was used as a portal again.
Ryueki: Kill him!
He commanded his flesh familiars to attack the twelve Kaneki's.
In Ryueki city*
Crackling~!
All 12: AAARGH~
Rumble~!
ROOOOAAAAAAR!
As the Flesh familiars got closer to each of the twelve Kaneki's. They were still in a trance, seeing the memories of previous Demon Knights.
ROOOOAAAAAAR!
As the Flesh familiars were about to attack the Kaneki's.
"Onii-chan... I'll protect your happiness with Shiho-san"
The type of memories that was being shown to them changed from the traumatic memories.
Slash!
To memories of many battles.
As the memories the Kaneki's were seeing shifted.
Swoosh!
Slash!
Bang!
Boom!
Pierce!
So did the twelve Kaneki's.
Slash!
Bang!
Pierce!
Slam!
All 12: RAAAAAAAAAAH!
All twelve of them stopped holding back and started to destroy everything.
"Locked on"
Kaneki 10: Locked on!
Bang! Bang! Bang!
Kaneki 10 began shooting endless amounts of bullets.
Pierce!
Boom!
Each bullet he shot made a massive explosion upon hitting his targets, the explosions from these bullets are around 30 meters.
He shot many of these bullets all over Ryueki city without stopping.
Slash!
Bash!
Rip!
Kaneki 6 rushed through the flesh familiars very quickly leaving the flesh familiars barely react to his movements.
Using his arms, wings and tail Kaneki 6 sliced the flesh familiars so quickly they became clouds of blood.
Crackling~!
Crack~!
Swoosh~!
Kaneki 9, 8 and 7 were together and their wings, spider legs and tentacles had disappeared.
Ryueki: What?!
Crackling~!
Kaneki 9 was wielding Yurei's Storm staff.
And as for 8 and 7, they were wielding Shimo's Absolute Zero Trident and Shin's Shadow Blades.
Kaneki 9, 8 & 7: ORAAAA!
Swing!
Once they swung their weapons, their immense power exploded.
Thunder~!
Whirl~!
The Staff created a storm covering the sky's of Ryueki city, with powerful winds making several EF-5 tornadoes imbued with lightning.
Crack!
Shatter!
Followed by the Trident's power freezing the entirety of Ryueki city, freezing all flesh familiars in place.
Whirl~!
Crash!
Crumble~!
The Tornadoes made by the Staff picked up countless debris from Ryueki city and thrown them all over the place and crushing the flesh familiars stuck from the ice.
ROOOOAAAAAAR!
Squish!
Chomp!
What came after was small Dragons that emerged from the shadows and after emerging they immediately went to devour the flesh familiars.
Crush!
Crash!
Boom!
ROOOOAAAAAAR!
Kaneki,Azuna, Akui, Quan, Shitsuren, Tomo and Kozo turned into Beast.
Shitsuren turned into Shin-Ken Kimonos true form.
Tomo turned to El Chimera.
Kozo turned to DreadMoth.
Quan and Akui had both turned into Dragons.
And lastly Kaneki and Azuna had turned into a two huge Kuwagata's (Stag Beetle) around 6 meters high, with Kaneki being colored red and Azuna blue.
Swoosh!
Crash!
Blast!
Pierce!
Chomp!
Each one of them flew across Ryueki city at sonic speeds, shooting, crushing and piercing any flesh familiar they see.
(Damnit! These guys are monsters! I have to kill the-)
Before Ryueki could realize it.
Pierce!
Ryueki: AAAARGH?!
He was pierced by something from behind.
???: Huh?! What the hell is that?!
???: where did that thing come from?!
Wriggle~!
Sachi: A Tentacle?!
A Tentacle came out of the ground and pierced his back.
Pulse~
And it was pulsing as if it was injecting something directly into Ryueki.
Ryueki: RAAAAAAAAH! WHAT IS THIS?! WHAT IS THIS THING IM FEELING?!
Ryueki then started to act more and more overconfident.
Ryueki: I'LL KILL YOU! ILL KILL YOU!
Ryueki gotten a boost from the tentacle.
Swoosh~!
The tentacle then disappeared.
Meanwhile*
Kori: alright, with that out of the way, the battle won't end yet. Kaneki-chan hasn't completed the test yet, this will buy enough time for him.
Kori/Announcer's thoughts*
(My drugs are a lot more unstable than Kaneki-chan's drugs so I hope that guy doesn't outright just dies, well then)
Kori: It's almost time, all Beast Knights prepare yourselves when you're called.
"Roger!"
(You can do it Kaneki-chan, become our Emperor)