A few minutes earlier...
After defeating every Villain that had remained, Oro leapt on the floor of a building, where the refugees were observing the fight between Shigaraki, Satoru, and Izuku.
They're all here... they're all right... he thought. He jumped off the floor and leapt onto the floor. "Yo, guys. Is my brother winning?"
"Oro-san!" a refugee said. "Weren't you dead?"
"Dunno, was I?" Oro crossed his arms and tilted his head. "Well, if I really died, it means I resurrected like Jesus!"
Oro looked to his left and saw Eraser Head. "Yo, Eraser. What are you doing here?"
"We can use Kurogiri!" Eraser Head said. "He's with Mic, he's waiting for us outside. Gather all the Heroes assigned to the evacuation and some of the ones specialized in defence."
"Can I come too?" Oro asked.
"You have to," said Eraser. "You're the strongest Hero around, of course, you're coming."
Oro nodded. "Everyone, go to the principal entrance."
"Sorry," said the same refugee from before. "Can you give this to that wounded Hero?"
The refugee took off his shirt and gave it to Oro.
"I will," said Oro. "But what will I give to my brother...? Nothing, since he likes to be shirtless!"
"Thanks, everyone," said Eraser Head. "Let's go."
As Eraser and Oro started to make their way, the Number One Hero was approached.
"Hey, Oro-san! You're Dark-san's brother, right?"
Oro turned and saw Eri. "Eri-chan..."
"I know you won't bring me in such a dangerous place, so I won't ask you to..." Eri said. "But please, bring this to Dark-san and Deku-san!"
Eri handed Oro her horn, which she had detached from her forehead.
"You detached it...?" Oro asked. "You shouldn't have, but... thanks, Eri-chan. I'll make sure to give it to them."
"Dark-san and his friends made me really happy!" Eri said. "When this day's over, I want to sing for them!"
Oro patted Eri's head. "You'll sing for everyone, Eri-chan. We'll win."
__________
Back to the present
"Aniki!" Satoru exclaimed.
"Thanks to my intervention, every Villain has been defeated but All For One," Oro said as he walked up to Izuku. "Young Midoriya, take this."
Oro used Eri's horn to grow Izuku's arms back.
"Midoriya," Eraser Head came out of the portal. "If it wasn't for Oro, we wouldn't be in this situation, so thank him."
"Thanks, Oro-san!" Izuku exclaimed as he got up.
"Don't worry," Oro said. "Neither you nor Satoru can die until Eri doesn't sing."
From the other portal, everyone from Class A but Bakugo and Uraraka came out.
"Guys..." Izuku said.
"Tch, my class isn't here..." Satoru crossed his arms. "I knew they were too lazy."
"Who's the lazy one, Sat?"
Satoru turned and saw Tetsutetsu, Itsuka, Ibara, Shihai, Komori, Sen, and Kosei.
"Guys!" Satoru exclaimed. "So you're here, huh?"
"Akiyama-san, even if not everyone's here with you, we'll help you!" Komori said.
Itsuka stepped closer. "Satoru-kun. Don't die on me."
She placed her fist on Satoru's chest.
"We're counting on you, Sat," Tetsutetsu said. "We always have."
"We're gonna have a huge chat when we're done," said Shihai.
"Now run," said Kosei. "We'll open a path for you and Midoriya. You just have to run."
Itsuka grabbed Satoru's hand. "Run, Satoru-kun."
She turned Satoru around and gently pushed him forward.
"Got it," Satoru said. "I couldn't be prouder of being your classmate, guys."
Satoru started to run, but his run was pretty slow due to all the damage he had sustained.
"You can do it!" the students of Class B shouted in unison.
My friend's support will lead me to the win... Satoru said.
"Dark-kun!" Izuku called out for him. "Let's end this!"
"Yes, Izuku..." said Satoru. "Let's end this."
The dark cross between Satoru's eyes appeared again. This... is the final act of my redemption.
"Our attacks are useless! He's too resistant!" Vlad King said.
Vlad-sensei's here too... Satoru thought.
"We have to open a path for them," Eraser Head said. "So that they can reach Shigaraki!"
All For One went all out and released everything he had. "Don't think you can win thanks to your numerical superiority!"
All For One released a powerful beam towards Satoru and Izuku, but Hagakure arrived and tanked it.
"Hagakure-san!" Izuku exclaimed.
"Light-based attacks are my speciality!" Hagakure said as she deflected the attack.
"Satoru-kun," Izuku said as he kept running. "I may be too weak to land the final blow on Shigaraki... this means it's probably up to you to finish him."
"Roger that," said Satoru. That's not a problem. I can do it.
Tsuyu and Shoji wrapped their tongue and arms around Satoru and Izuku.
"We're not fast enough to dodge his attacks," said Shoji.
"But we can at least help you go a little further..." Tsuyu added.
Satoru and Izuku were thrown in the air. Satoru rolled forward on the floor and kept running.
Dammit, I'm too tired... said Izuku. Satoru-kun... please, reach Shigaraki... I'll rest for a minute...
As Satoru kept running, everyone defended him from the attacks All For One released.
Even if they don't know me well, they're protecting me... Satoru thought. Does this mean I've been accepted as a Hero...? No, it's not the right time to think about it.
Akiyama Satoru... All For One thought as he watched Satoru dodge a couple of tentacles.
Thanks to Gentle Criminal's Quirk, Satoru was propelled in the air and dodged a tentacle.
"Ganbare, kid!" Gentle Criminal said to him.
Your weakness... All For One thought. All Might didn't have the strength of the weakness!
Satoru was about to collapse forward, but Oro sprinted forward and grabbed his hand, keeping him on his feet.
"You can't collapse yet, Ototo!" Oro exclaimed as he pushed Satoru forward. "You know... I remembered our first encounter...!"
That's right, Satoru... Oro thought as he watched Satoru run. Since the day I've met you, even when I didn't know we were brothers... I recognized something in you. You didn't have the features of a Villain.
The truth is, dear Satoru... that since the day I've discovered you were the brother I thought was dead...
I can hear everyone's voices... Satoru thought.
"Ganbare, Akiyama-san!"
"Ganbare, Satoru-kun!"
"Ganbare, Sat!"
"Ganbare, Ototo!"
"Ganbare, Akiyama-kun!"
"GANBARE!"
Satoru planted his feet onto the ground and jumped as high as he could. He raised his arm and clenched his fist, ready to strike.
Oro watched his brother. Since that day... you've been my greatest Hero, Satoru!
"All For One, this is my last attack!" Satoru exclaimed as he quickly dodged All For One's attacks. "DARK CONTINENT: ULTIMATE VERSION!"
The blow landed right on All For One's chest. Satoru dug his fist deeper.
He knew he couldn't fail. Because this was his redemption.
__________
Why didn't I notice? All For One wondered. I should've noticed the super-regeneration wasn't working on this body... It's Satoru's fault. No. Everyone planned this.
"It's hilarious, isn't it?" Satoru asked. "In only two years, I've surpassed you. The place where you sent me gave me the strength to defeat you, All For One. That's called karma."
"This attack is the combination of every Quirk in my body and the crystallization of my will to redeem!"
Satoru's punch dug deeper. All For One's body got bisected and slowly began to turn into dust.
Not yet. It's not over yet!
Suddenly, All For One's remnants exploded, and Satoru was sent back.
He's using his Quirks to keep his body together forcefully!
I still haven't accomplished one goal, All For One thought. I must kill you, Satoru. The traitors of the League of Villains shall die.
Satoru landed on the floor. I'm not... done... yet!
Satoru got up and ran towards All For One. "It's time to stop right here, All For One!"
Satoru jumped again, but Kurogiri's portal appeared in front of him. "Please... give Tomura Shigaraki back... his friends are waiting for him...!"
Suddenly, an explosion far away. Oro, Izuku, and Bakugo reached Satoru in the air, destroying Kurogiri's portal.
"I told you it was just a minute, Satoru-kun!" Izuku said.
"The path is wide open, Satoru!" Oro exclaimed.
"Katsuki-kun! Weren't you at the hospital?" Satoru asked.
"Yes, but I came here using my Quirk, and Todoroki gave me a launch pad!" Bakugo replied. "Don't you dare let me surpass you, Satoru!"
Oro, Izuku, and Bakugo fell back on the floor, leaving Satoru alone against All For One.
"I'll never forgive you for what you've done to me, All For One..." Satoru said, clenching his fist. "But at the same time... I can't help but thank you for this power you gave me!"
Satoru's punch collided with All For One's hand, which was destroyed. Then Satoru destroyed the whole arm.
I've waited my entire life to say this phrase... Satoru thought. "PLUS ULTRAAAAAAAAAAAA!"
"SAYONARA, ALL FOR ONE!"
__________
Satoru found himself in a blank space in front of Shigaraki--the one he knew, not the one with white hair.
"I thought I vanished when Sensei swallowed me," he said. "But I'm still here. I wanted to say goodbye, Satoru."
Satoru smiled. "You're always the same stubborn guy, Tomura."
"If he's still alive, can you tell Spinner I fought until the end and destroyed everything?"
"I will, but I don't know how eager he'll be to see me."
"Tell him you came because I told you so."
"Got it, Tomura."
A pause.
"So this is a goodbye?" Satoru asked.
"Guess so," Tomura said. "You've been a good friend, Satoru. See ya in the afterlife."
"See ya in the afterlife, Tomura," Satoru said, smiling. "You've been a good leader."
__________
A beam of light appeared in the sky. Oro managed to raise his head just enough to see Satoru in mid-air, with his fist clenched in the sky in sign of victory.
He... did it... Oro thought for the last time before passing out.
I've won... Satoru thought. My redemption is completed. I am a hero.
Chapter 87 - End