Everyone in the observation room are looking at the screen in horror except for Ayaka who had stars in her eyes and Aizawa who looked even more done with life then normal. Then Kirigami continued causing another shiver down everyone's spine.

{In Ground Beta}

Kirigami: Welcome to my Domain Expansion!

Team Villain now sees Kirigami meditating in the air. Surrounding this entire space are Tori gates, behind Kirigami is a blood moon.

Kirigami: Pick a weapon and fight me, villains!

After Kirigami's snap of his fingers, countless weapons of all kinds appeared around this space, from swords, blades, spears, claymores, even bows or guns. 

(Like this)

Kirigami immediately took a nearby spear, charged it with lightning, and attacked Iida and Todoroki. The two of them dodged and then held some weapon in here. Iida chose the sword and Todoroki chose the bow. 

However, their efforts were meaningless against Kirigami

Kirigami: MUDA MUDA MUDA! You guys are so dependent on your Quirk that you've forgotten how to fight with your bare hands! Well then... I'll show you! Raiden Art: Subete Wa Mu Ni Kaeru! (Everything Returns to Nothingness)

Kirigami emitted a powerful shockwave that attacked Iida's group. Both of them tried to use their Quirk but unfortunately both of them couldn't use it.

Kirigami: It's useless, as long as you're stuck in Plane Of Euthymia, you won't be able to use your Quirk. And just as I thought...

Kirigami flashed behind Iida and saw him sweating profusely.

Kirigami: Relying too much on Quirks makes it impossible for you to fight properly. And it is that dependence that creates a fatal weakness for you. Think about it, suppose you were in a similar situation but in real combat and villains had hostages, what would you do? Think dumbass, think!

Iida: Still don't explain about you have to make Bakugo blind!

Kirigami just gave a mocking smile to the other two.

Iida: "Yells" WHAT'S SO FUNNY ABOUT IT!?

Kirigami: "Points to "Bakugo"" Look over there...

Todoroki and Iida look at what they think is Bakugo and discover that... what they brought in... is a wooden puppet

Todoroki: "Shocked" W...What?!

Iida: "Shocked" How?!

{In Monitor Room}

Ashido: R-remind me not to get on his bad side

Ayaka: If I have to warn you it's already too late.

Tokoyami: Revelry in the Dark

Hagakure: How did he become so creepy?

Asui: He's scary ribbit!

{In Ground Beta}

Kirigami: It's too late! Now!

After Kirigami's command, many Kirigami clones emerged from the ground. They took everything they could hold. The grave of weapons that Kirigami created earlier created an arsenal for other Kirigami clones.

All wooden puppets bearing Kirigami's identity rushed forward to attack Iida and Todoroki. Every time they defeat one, more puppets appear. And the number of appearances is up exponentially. 1 becomes 2, 2 becomes 4, 4 becomes 8, 8 becomes 16 and so on.

But as soon as Kirigami left the Plane Of Euthymia, all the clone puppets disappeared. Iida and Todoroki regain the ability to use their Quirks. They knew that Kirigami was something difficult to defeat, so they returned to the real bomb and secured it.

{The Fifth Floor}

Kirigami leisurely entered the room where the bomb was placed. Of course he always planned ahead. 

Bakugo: "Yells" DIE!

Bakugo suddenly burst out from the corner of the room and unleashed an explosion. Actually, Kirigami hadn't completely knocked Bakugo out before. But it's all in that guy's calculations. Bakugo thought he had won, that is until....

All Might: HERO TEAM WINS!

When Todoroki and Iida returned, it was too late. In fact, when Bakugo launched the explosion, Kirigami used Nexus and Mumeiken Kyomu to transfer the explosion into nothingness. After that, using the smoke to hide himself, he went to the bomb and sat on it.

Kirigami: Chickens! 

Kirigami was about to boldly leave when Bakugo slowly reach for his gauntlets and aim at Kirigami

All Might: YOUNG BAKUGO DON'T! THE MATCH IS OVER! DO NOT DO THAT YOU COULD KILL THEM!

Bakugou: "Yells" NOT IF THEY DODGE DIE!

He pulls the pin, creating a big explosion. The attack hits causing an explosion that took out the cameras and disabled the communications.

All Might: "Yells" YOUNG RAIDEN! YOUNG TODOROKI! YOUNG IIDA!

Ayaka: "Yells in anger" I'M GONNA KILL HIM!

The smoke cleared revealing a barrier made by Kirigami's Nexus that protected him, Todoroki and Iida. He slowly let down the barrier...

Iida: Thank you Raiden-san!

Kirigami: Kakusei....

AM: "Yells" I AM GONNA GO CHECK ON THEM TO SEE IF THEY-

He was stopped by Bakugou who came crashing through the wall of the observation room landing on the ground. Kirigami slowly came out...no, slowly flew out with a new form

(Dark Nexus 100%)

Kirigami: "Yells in anger" DIE! DARKNESS TIDES!

He unleashes two flying crescent slashes by his Blades that travel towards Bakugou.

Kaminari: "Yells" RAIDEN! CHILL MAN YOUR GONNA KILL HIM!

Sero: "Yells" DUDE CHILL! DONT TAKE IT TOO FAR!

Kirigami: "Yells in anger" GET THE FUCK OFF OF ME!

He powers up as his aura blows everyone back even All Might.

Kirigami: "Yells in anger" HAVOC: ANNIHILATION!

He performs a slash and a cross-slash, dealing alot of damage, before throwing a spinning polearm forward that deals an explosion upon contact.

AM: "Yells" THAT IS ENOUGH YOUNG RAIDEN! STOP THIS AT ONCE!

Kirigami: "Yells in anger" LET ME GO THIS BASTARD NEEDS HIS LESSON BEATEN INTO HIM!

With his power he blew All Might back. As he looks back at Bakugou, he starts to using his final skill.

Kirigami: "Yells" ULTIMA: NEXUS ANNIHILATION!

Yaoyorozu:" Yells" RAIDEN-SAN! PLEASE DON'T DO THIS!

Ojiro: "Yells" PLEASE MAN THIS IS ENOUGH HE IS BEATEN!

Shoji: " Yells" COME ON MAN THIS HAS GONE ON LONG ENOUGH! DON'T DO SOMETHING YOU'RE GONNA REGRET!

The moment Kirigami was about to jump up and stab Bakugou to death, someone hugged him tightly from behind. He turns to see Ayaka hugging him from behind

Ayaka: Please Kiri-chan! Don't do it! I lost you once please I don't want to lose you again! If you fire that blast your gonna ruin everything you worked so hard for please!

He sees the tears coming from her eyes

Ayaka: "Crying" Please don't do it...

Kirigami saw his best friend or more accurately, the girl he secretly loved shed tears, making his heart soften. He looked back at himself now, promising to never use his 100% Dark Nexus form again after that day. Kirigami regained his composure and returned to normal.

Kirigami: I'm sorry...

Ayaka: "Crying" Just... don't do that again...

All Might: "Thought" Not again.... this is the second time he Berserk when he use Dark Nexus 100% Form 

After Kirigami lost control, All Might temporarily let class 1-A rest so the teachers could repair the facilities. Midoriya wanted to ask about Kirigami's Quirk but All Might refused, partly because information about Kirigami was a national secret. Partly because All Might felt it wasn't time for Kirigami to reveal the truth about his past.

See you at: Volume 7: Aftermath And Following Him