Izuku charged towards Shigaraki and while using Blackwhip, knocked him down! 

Yang: HA! (Y/N) taught him well! 

Shigaraki: Is he stronger than before? 

Izuku: Sorry I'm late! Is everyone okay? 

Yang: Izuku! It's ... horrible! Katsuki ... he- 

Izuku saw Katsuki, and a look of horror was shown directly on his face. He then saw everyone else in teh group. 

Shigaraki: What's your excuse for being so late to the party Mirodiriya? Wy don't you say something like, "There was nothing I could do," or how about "The plane went south." 

Izuku: AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAARGH! 

He screamed in rage as Yang was blown back! 

Yang: DAMN IT! DEK- 

But then Mirio appeared. 

Mirio: DEKU! IT's alright! I know how you feel, and I can't forgive myself! But that's exactly how he wants you to feel! It'll be fine! Right now Edgeshot is saving Bakugo's life from the inside! I'm sure he'll manage it somehow! That's why you have to keep fighting! So don't give up! 

Shigaraki: Please, you're just using optimism and escapism to make such claims. 

Yang: Yeah, well if we're not optimistic, then how the hell are we going to keep everyone we're supposed to protect safe? After all, this is a job where you're putting your life on the line! 

Izuku then calmed down. 

Izuku: Lemillion, Yang, I'm sorry. 

Yang: Well, you can save it for after you finish him off! 

Izuku: Is Tenko Shimura still in there? 

Shigaraki: The boy is long dead! I am Tomura Shigaraki, the man who will destroy everything! 

Yang: You got to be careful man, he's a fucking loose cannon! 

The two charged at each other, and- 

Izuku: BLACK CHAIN! 

Izuku began using your ability and then- 

Izuku: TOP GEAR! 

Using Gearshift he increased his speed and began to beat the shit out of Shigaraki! 

Yang: FUCK YEAH! He's keeping up with him! 

Izuku: GEARSHIFT OVERDRIVE! DETROIT SMASH!!!! 

Shigaraki hit the ground and then Izuku charged at him with- 

Izuku: DETROIT SMASH QUINTUPLE! 

He punched him over and over again as the villain got up! 

Shigaraki: WHY YOU LITTLE SHIT! I'LL- 

But then Blackwhip hit him from above! 

Shigaraki: YOU INSEC- 

He couldn't keep up no matter what. 

Back with Blake... 

The Mutants were going nuts with several of the heroes desperately keeping them back. 

Mutant: YOU HUMAN FAED PEOPLE WILL NEVER UNDERSTAND! 

Koda: WH YARE YOU DOING THIS?! JUST STOP ALREADY?! 

Mutant: YOU DAMN TRAITOR! 

As the riots kept going on and on, Blake clashed with Spinner. 

Blake: SPINNER! STOP! I KNOW HOW HARD IT MUST BE TO BE JUDGED FOR HOW YOU LOOK, I'VE DEALT WITH IT TOO FOR MOST OF MY LIFE, BUT DOING THIS MEANS YOU'RE NO BETTER THAN THOSE WHO PERSECUTED YOU! JUST PLEASE STOP! 

However, his mind was getting warped. 

Spinner: What is she talking about? My mind ... it's ... going blank. Whatever ... I- I WILL DO AS I AM TOLD! AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAARGH! 

He soon began to grow in size! 

Blake: WHAT?! What the hell did they do to you? 

Spinner: AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAARGH! 

He tried to attack her, but then- 

Blake: DAMN IT! 

She used some of her shadows to disappear and escape. 

Blake: You got to be kidding me! 

But then all of a sudden- 

???: OCTOBLOW! 

Shoji appeared and hit Spinner! 

Blake: SHOJI! 

Mutant: DAMN TRAITOR! He thinks he's some kind of hero! Kill him! 

They started to attack Shoji! 

Blake: SHADOW BEASTS! LEAVE HIM ALONE! 

Blake's Shadow Beasts started to attack, but- 

Shoji: STOP! The first thing the heores did was evacuate the patients and the staff from the hospital. They started attacking when everyone was safe! What about you guys? Have you even thought about that?! 

His mask came off. 

Shoji: I SWEAR IFF THE ANSWER IS NO, I WILL NEVER FORGIVE YOU! 

She then saw his mouth. 

Blake: Shoji. 

Spinner: No ... idea. 

Blake: Spinner, this attack will set your cause back by several years. Don't you realize i- 

Spinner: SHUT UP! GOT TO HELL! 

Suddenly he transformed into some giant lizard monster! 

Blake: All For One, what did you do to him? 

Both of them were knocked against the walls! 

As they did, Shoji remembered when he saved a girl from drowning in a lake. IT was the one time he was comfortable with his body. 

Blake: You're not the only one who suffered! 

Shoji: There has to be another way than this! 

Spinner: I DON'T CARE! 

Blake: You need to think of another options! After all, we're the ones here who carry the scars of prejudice! 

Villian: If such an argument was enough, we wouldn't have gathered so many! You don't give us concrete alternatives you're jut showing your bloated ego! It just shows how much you've been domesticated by- 

But then a flock of birds came towards him! 

Koda: DON'T LAUGH AT THEM! 

Koda overpowered the villain controlling the masses! 

Blake: SHADOW BREATHING: EIGHTEENTH FORM: DARK SOUL SHADOW SLICES! 

Shoji: OCTO EXPANSION! 

Their combined attack greatly injured Spinner! 

Blake: What do your ven want to protect with that body of yours? 

Shoji: THE SAME GOES FOR YOU?! WHAT DO YOU WANT TO PROTECT WITH THOSE ABILITIES YOU HAVE?! 

Blake and Shoji: DON'T LET REVENGE CONSUME YOU! BECAUSE IF YOU DO, THEN HATRED WILL NEVER DISAPPEAR! 

As they landed the mutants looked around. 

Mutant: I've been attacked multiple times for no reason at all, it makes me angry, but will you laugh at me too and say I'm frivolous? I won't deny that I got executed over a call to action, because inaction is part of the problem. I thought it was finally time to strike back at the world who mistreated us. Now I feel like there are some people that I don't want to cause harm to. I don't even know anymore. Was I wrong for coming her? Should I jut have stayed oat home? 

Blake: The reason for coming here, wasn't useless. 

Shoji: The fact that no light has ever shone on us, has hurt us immensely. 

Blake: You need to use your powers to change the people who hurt you. 

Spinner lay on the ground, his body turning back to normal. 

Spinner: What's going on? My body won't listen to me. Is this really the end of the line? Shigaraki. 

He thought about a conversation they had. 

Shigaraki: You like League of Legends? 

Spinner: Yeah. Do you? 

Shigaraki: Hell yeah! 

Spinner: Heh, always glad to meet a fellow gamer. 

Blake watched as Spinner was lying on the floor, completely unresponding. 

Blake: I'm sorry, Spinner. 

Tears fell from her eyes. 

Blake: Please, I don't want anyone else to take the same path that ... he took. 

Back with Ruby and Ochaco... 

Ruby and Ochaco continued their battle with Himiko! 

Ruby: STOP IT HIMIKO! I know it must be hard because of all you went through, but you can't do this! 

Himiko: NO! NO! YOU DON'T UNDERSTAND! YOU CAN'T CHANGE THE WAY I FEEL! 

Ochaco: Only you can do that. It's your life! 

Himiko: Yeah, well- 

She took out the vial with Twice's blood. 

Himiko: I'll just take Jin's blood! 

Ruby: NO! 

She knocked the vial away and destroyed it. 

Ruby: GOT YOU! 

But Himiko drank another vial. 

Himiko: That was a fake, Ruby. Now- 

She transformed into Twice. 

Himiko: Let's get this party rolling! SAD MAN'S DEATH PARADE! 

She started to create many Twice's and they were transforming into various other people including Kurogiri, who then teleported away! 

Ruby: NO! 

Ruby and Ochaco pursued after her! 

Ochaco: WE STILL NEED TO HAVE A TALK! 

They arrived where you were battling All For One! 

Ruby: YOU NEED TO LISTEN! 

Himiko: LEAVE ME ALONE! I DON'T NEED TO HEAR ANYTHING FROM YOU! 

Ochaco: What's going on here? 

All of Himiko's clones were going wild! 

Ruby: ENOUGH! 

She created over 100,000,000 Speed and Shadow Clones! 

Ruby: STOP THEM! 

Back with Izuku... 

Izuku and Shigaraki continued to pound each other over and over again. 

Izuku: So, are you just going to be All For One's pawn is that it? 

Shigaraki: I'm no one's pawn! This world I will destroy! I will destroy everything! All in my name! That will be my only salvation, hero! 

Izuku: Well, I won't ignore the "you" that was crying! 

Back with you... 

(Y/N): AAAAAAAAAAARGH! 

You and All For One continued to attack each other over and over again! 

(Y/N): I WON'T GIVE UP UNTIL YOU FALL, ALL FOR ONE! SO WHY DON'T YOU JUST GO DOWN?! 

He unleashed his tendrils over and over again! 

All For One: It's pointless. All of society will collapse! 

(Y/N): NOT IF I HAVE ANYTHING TO SAY ABOUT IT! BIG BANG ATTACK! 

You fired the same attack that was in Vegeta's arsenal, blowing All For One back. 

All For One: You still have some fight in you? 

(Y/N): I got a lot of fights in me! You may be a monster above all other humans, but I've got the power to crush monsters like you! I've faced a monster who was just as cocky as you! And your attacks are nothing compared to his! 

And then out of nowhere- 

???: MASTER! 

Gigantomachia appeared. 

(Y/N): WHOA! What the hell is this guy doing here? 

Heroes: Gigantomachia?! 

Gigantomachia: Master, why did you leave me?! I trusted in your words and waited for you! So why didn't you come back?! 

(Y/N): Oh, you want to take your anger out on him? I bet you want payback, well so do I! 

Back with Ruby and Ochaco... 

The two were surrounded by so many clones! 

Twice Clones: ALL HEROES MUST DIE! 

Ruby: So many!

Ochaco: Ruby, hang on! 

Ochaco used her zero gravity on Ruby to make her float. 

Ruby: Thanks, Ochaco! HEY HIMIKO! 

Himiko: Huh? 

Ochaco: You know when I first saw you last summer, I can't think about how much you changed! I'm sorry I never gave you a chance! 

Himiko: SHUT UP! 

Ruby: Do you think we can ignore someone who was crying like that?! I'm sure the reason that you can't do the things Twice could do, and why can''t become him, is because you've got everything in your head mixed up! You don't know when to- 

Himiko pinned them both down! 

Himiko: JUST SHUT THE HELL UP! WHAT CAN YOU POSSIBLY UNDERSTAND ABOUT ME! 

Flashback... 

Himiko's Parents: YOU DRANK YOUR FRIEND'S BLOOD?! 

Himiko: She was hurt, so I kissed it to make her feel better. 

Himiko's Parents: IT'S NOT NORMAL! 

Himiko: I don't get it. If everyone is suppressing their desire to become the ones they love ... why dones' anyone else ... kiss the way I do? 

Himiko's Parents: THIS ISN'T RIGHT! SHE'S ROTTEN TO THE CORE! WE GAVE BIRTH TO A DEMON CHILD! 

End of Flashback... 

Himiko: All of that is easy for you to say! When both of you change, you change for the better, WHEN I CHANGE, I CHANGE FOR THE WORSE!!! 

She continued to attack with her scalpel! 

Himiko: I JUST WASN'T GOOD ENOUGH! I WASN'T GOOD ENOUGH FOR SOCIETY, NOT GOOD ENOUGH FOR MAMA, NOT GOOD ENOUGH FOR PAPA, BUT NOW ... NOW ... I'M NOT GOOD AT ALL! 

As she attacked again- 

Ochaco: You ... have a lovely smile. 

Then she stopped. 

Himiko: You ... mean it? 

Ochaco: Yeah ... I do. 

Ruby: All I see ... is a girl who wants to belong in a world that doesn't understand her. 

https://youtu.be/lk0gm_Z81bE

Himiko dropped her scalpel. 

Himiko: Hahahahahahaha. It's funny. I mean ... you're the first ones who ... actually ... said that about me ... you actually ... like me. 

Her laughter turned into tears. 

Himiko looked at the blood on her hands. 

Himiko: What am I doing? Why ... why do I want to hurt you both so badly? I ... just ... I just want ... I- WAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAH! 

Both of them got up. 

Himiko: Wh-What a- 

They hugged her. 

Ruby: You lost a good friend of yours, right? 

Himiko: Yes. 

Ochaco: I'm sorry. Please, just stop it all. You can be better than this. 

Himiko: (still crying) The League ... we want to destroy everything and create a new world ... that world would be so easy for us to live in. But ... you both ... you both made me so very happy. I ... can't do this anymore. I just can't. I'm sorry for everything. 

Both girls embraced the crying villain. She was defeated.