Shouto immediately sent fire blasting at his glittering opponent, expecting him to leap out of the way. If the ice hadn't worked, the fire should.

The results were surprising.

The boy just raised his hand to the leaping flames, and they plunged downwards into the ground. It glowed red with the imbued heat.

"My turn," he stated. Flames sparked into existence around him, swirling faster and faster all the time. As the fire kept spinning, it began to change colour. Red phased to blue, blue turned lighter, and then there was white.

Shouto was almost too shocked to react. White fire was a kind of fire of a heat impossible. Even Dabi probably wouldn't have been able to make it if he tried. And here was this boy, a scarlet mask pulled over his pale eyes, conjuring it into being in an instant.

White fire blazed towards him, and Shouto jumped out of the way, but it turned, and followed him. Another mystery. Apparently his adversary could control the heat and direction of the flames.

The inferno surrounded him, and Shouto's skin blistered. He tried to soothe his skin with ice and surround himself with it, but it evaporated the moment it formed.

Shouto passed out. Beaten, in a few seconds. The roaring flames vanished, and the boy strode towards him. He put his hands in his pockets, and moments later there was a portal where Todoroki used to be.

=0=

Izuku was in a lot of pain at this moment. First he had been punched, then he had crashed into a building and broken the walls with his back. Then his attacker had bulleted into his head, and was now standing on him.

"You're not as good as I had hoped," he was told. "If this is what your maximum is, you have a long way to go before you can give me the barest definition of a fun time." He paused, considered that statement.

"You know, now that I think about it, that sounds kinda dirty."

Izuku's only response was to groan.

The boy raised an eyebrow. "Do you want to get up?"

He shrugged. "Sure, why not. Show me all you've got."

He got off, and Izuku sat up. He scrambled to his feet and settled into a fighting pose, his fists held protectively in front of his body. The boy made no move except to stand with his hands out.

His finger twitched.

Izuku jumped at him, ready to lash out, but he blurred with movement and met him head on, slamming a fist into his midsection and knocking the air out of him once more.

Izuku flew upwards, breaking every single floor in the building as he went.

He got his breath back just in time to come crashing down again, and he lost it again. He gasped without inhaling, his lungs empty and pressed into themselves. When his breath came back, he wheezed with the pleasure of having air to breathe. His body flooded with welcome oxygen.

So much damage in a few seconds, and the boy before him hadn't even moved that much.

Izuku sat up again, determined to show his opponent the true extent of his power.

One for All: 100%!

His veins shimmered with sparkling pink. His appendages rushed with the height of power. He got up fully, ready for anything.

With a yell to bolster his nerves, he charged and hit the boy full in the face.

"SMASH!" he roared through the pain, and there was a sound like concrete colliding, like two huge slabs of the stuff banging into one another. Izuku gasped in pain as his arm turned purple.

His opponent's head went sideways, and he grinned at him from that angle. He hadn't seen the state of Izuku's hand yet.

"Definite improvement."

Then he hit him again.

Izuku felt that if he hadn't had One for All completely active in all areas of his body that punch would have torn him open. As it was, he sank to his knees, his mouth open soundlessly. There was no explosive force in that punch that he could feel, probably because he wasn't concerned with anything other than himself at the moment, but the pain alone was more than any other strike he had been delivered.

He helplessly watched the boy stride over to a supporting pillar, and then he roughly broke it apart with two swipes of his hands. Izuku, unwilling to be beaten without giving it his all, closed his eyes and concentrated.

There they were, the deepest cores of One For All, the swirling masses of power just waiting to be unleashed and utilized.

But there was something else as well…

Izuku channeled the purest, most concentrated parts of One For All to his limbs, and felt the already terrible power grow and grow until he felt like he would explode into uncountable pieces. Gritting his teeth, he got up, and dark tentacles tinged with green shot from his skin even as the air around him exploded with force as One For All grew with every passing millisecond.

The boy paused as he heaved the broken pillar over his shoulder.

"Neat."

And then he brought it down in a final strike.

The entire concrete support pillar hit him over the head and crushed itself to dust. At the same time, it turned his mind to mush, and all the power that he'd wanted to unleash crumpled into itself, and exploded outwards.

The resulting blast turned every window within a few buildings space of where he was to powdered glass and wrecked the walls of the building, Black Whip scoring deep gashes in every inch of the surface. His adversary just watched, unperturbed even as he was lashed with the dark power.

Izuku lay there, unconscious, and the boy walked up to him after it was all over.

"That was fun while it lasted, I guess," he sighed. He reached his hand into his pocket, and pulled Izuku by one leg into the resulting hole in space.

=0=

Momo and Kyouka had been beaten by Ayatsuru in just a second. Kyouka lay there, on the bed, trying to think over what had happened. He had just walked in on them, sitting together and hiding.

The fact that they had been talking to each other may have had something to do with it.

As they jumped to their feet, Kyouka had plugged her ear jacks into the speakers that were part of her costume, and what should have deafened him had no effect. He had raised a hand, and nothing had happened. Then she had woken up with Recovery Girl looking at her with a look on her wrinkled face.

Kyouka absolutely did not know what that look meant.

She looked over at Momo, who was seated in a chair and staring vacantly at the floor. She snapped her fingers, and Momo blinked and looked up at her.

"What happened?" she asked. Momo did not answer for a moment, then opened her mouth.

"Everyone else is either concussed, unconscious, injured, two of those things, or all three. Recovery Girl's having a hard time just dealing with all of them. And they keep coming."

Kyouka felt weird after that statement. She didn't really know how to feel. On one hand, she was impressed that Class 1-S was that strong. On the other hand, her classmates were hurt.

Her classmates took priority, she decided.

"Everyone okay?" she asked.

Momo sighed. "They're fine. Most are unconscious now, but they'll be okay." She looked at Kyouka. "How are you feeling?"

"I'm fine. I don't feel any different," Kyouka said, immediately feeling guilty that she hadn't asked Momo how she was feeling first. "What about you?"

"I feel the same as you. I think I know why, too."

"Why?"

Momo pondered it for a moment, collecting herself. "Ayatsuru-san can manipulate energy to a fine degree, correct? I believe he may have absorbed the soundwaves from your speakers, and then essentially made our brains short-circuit."

Kyouka stared for a moment. "How?" she asked uncertainly.

"Our brains function through electrical signals, do they not? He may have forced that electrical energy to halt or stimulate the correct areas of our brains to make us fall unconscious or fall asleep."

"Oh."

"He does have more control than I anticipated, from the demonstration and what Fukusei-san told us. It was rather surprising."

Kyouka wasn't usually one to feel awe-struck for other people through other people, but right now she was feeling admiration for Momo and Ayatsuru both.

=0=

Darkness flowed around Fumikage as the girl moved her hands like the conductor of an orchestra. Dark Shadow struggled under the shadows that bound it to the ground. Her dark, caped costume was ragged in that complete way that seemed to have extra bits to it.

Fumikage grunted and stood on his feet, swaying. That one blow had almost knocked him out.

The girl standing in front of him now, with perfect black hair and the darkest eyes he had ever seen, had gone right past the alley in which he was hiding without noticing, and he had decided to take advantage of the moment.

That had been a mistake to go down in the history books.

As he had stepped out, the girl had looked back at him over her shoulder, and just lazily raised a single hand. Every single shadow around him had drifted into the street and risen from the ground, taking physical form. Even Dark Shadow had been no match for the gathering of darkness, immediately getting pummeled to the ground by the black behemoth. It had then turned on Fumikage and crashed into him so hard it hurt to exist.

Thankfully, there was no lasting damage, but he had the biggest headache in the history of the world. Tiredly, he called Dark Shadow back into himself, freeing it from the bonds that secured it to the ground.

Right away, blackness slammed into him, and he gave up and sank into the darkness that crowded his mind.

The girl stared at him for a moment, before walking over and putting a hand in her pocket.

As with everyone else, there was a portal to take him away.