Some hours passed since Shigaraki left with Kurogiri and some d-list villains to go and attack U.A and take down All Might. Y/N sat at the bar alone as he sipped on his drink. 

Back when he was younger, he idolized All Might, hell he even wanted to be him. But fate wasn't so kind to him back then. As he sat alone at the bar, his mind drifted towards the Nomu Shigaraki mentioned.

Y/N went to talk to Dr. Kyudai for some answers and he got them. The Nomu he specifically created to counter what All Might could do and kill him. Dr. Kyudai told Y/N he gave the Nomu two specific quirks, Shock Absorption and Super Regeneration, that way even if All Might were to land deadly hit on it, it would withstand it and keep going. 

Y/N was both shock and annoyed. Shocked about how strong the Nomu was and annoyed because it has the Shock Absorption quirk would be really cool to have in his arsenal.

Y/N: Man, sucks I couldn't get Shock Absorption. Whatever, I guess I can probably get something just as cool. (takes a sip of his drink) Might as well see how Shigaraki's plan is progressing. 

(USJ) 

Picking up where we left off, All Might entered the training facility, not smiling.

All Might: I couldn't shake the feeling that something had gone wrong here when Wyvern, Aizawa and Thirteen didn't answer my calls. So I hurried over, running into Young Iida along the way. He told me of the villainy at work here.

Wyvern soon joins him, and the two were ready to fight.

All Might: How bad is it, Wyvern?

Cynthia: Very. Thirteen and Eraser are badly injured, and the students are scattered everywhere. Arc, Izuku, and a few others are with that big guy down there.

All Might: Then there's no time to waste.

Shigaraki: After all this waiting... The heroic piece of trash shows up.

Not wasting a single moment, All Might rips off his tie and blazer as he shouts his catchphrase, "Everything will be all right. Because I am here". He rushes through the central plaza at super speed to recover the injured Aizawa,

defeating the remaining Villains there in a instant.

All Might picks up Aizawa and sees his injuries. His face was bruised from the beatings and his right elbow was missing enough skin to where the muscles were shown.

Cynthia: I'm sorry, Aizawa. I should've been faster with beating the larger threats.

All Might: And I should've been here sooner.

They then look over, and immediately got the students as far away from the villains as they could.

Mineta: (confused) Uh... What the heck?

Shuri: He's fast.

All Might: Everybody, back to the entrance. And take Aizawa with you. He doesn't have much time.

Mineta: Yes, sir!

Tsuyu: Ribbit!

Izuku: You saved us.

Arcturus: It's not over yet. (points to the villains) They're still here, which means we have to stop them.

All Might: We will, Young Farron. 

Cynthia: Arc, you're fast enough. Help run the others back and get Aizawa to Recovery Girl. She'll keep him stable until the paramedics arrive.

They pick their teacher up, and Shuri puts her kimoyo beads on Aizawa's arm to help stabilize him. But Izuku and Arc still looked uncertain about leaving.

Izuku: All Might, Wyvern, you can't! That brain villain took One For—(pauses) I-I smashed him and didn't break my arm this time, but he wasn't fazed at all. He's too strong!

All Might: Young Midoriya!

Izuku: Uh—

All Might: (turns to him and smiles) We got this!

Wyvern: Have faith in us.

They were all still uncertain, but nevertheless, heeded their orders, and Arc runs with Aizawa back to UA while the rest of the group makes their way back to the entrance. Now that the kids were away, the pros turned back to the villains.

All Might: (launches forward) CAROLINA—

Shigaraki: Nomu.

All Might: SMASH!!!

At the last second, Nomu, blocked the smash. It moves to grab All Might, but he ducks and punches it in the gut. Cynthia helps in by using her dragon strength.

All Might: They weren't joking when they said this thing was tough!

Cynthia: Yeah! Keep your guard up!

Nomu launches a punch at Wyvern, but she evades and delivers a punch of his own, but this attack has no effect as well.

All Might: (to Nomu) Doesn't even matter where I punch you, does it?

Shigaraki: That's because Nomu here has Shock Absorption, All Might. The only way you're going to hurt him is to slowly gouge out his flesh. Of course, I don't think he'll sit back and let you do that. You've finally met your match.

All Might: Ha! Thanks for telling me how to beat him! All I have to do is wear him down, and then it's on to you!

All Might pulls a souplex on it and Cynthia kicks it hard enough to break open its stomach. As they fight, the other students watch and admired the strength that was demonstrated. 

However, neither Arc or Izuku could shake off the feeling that something wasn't right about this. Especially since they knew All Might was at his limit.

And those fears were proven right when the dust clears, there was a void underneath them, and Nomu was digging its hand into All Might's side.

All Might: Oh, c'mon! What kind of cheap move is this?!

Shigaraki: Nice. You were trying to bury him in the concrete so he couldn't move around anymore. Sorry, that won't work. Nomu's as strong as you two are. That won't stop him. (giggles) Nice work, Kurogiri. We've got them just where we want them now. Especially All Might.

Kurogiri began manipulating the portal to hold them in place while Nomu squeezes its grip.

Cynthia: (thoughts) Crap! That thing knows All Might's weak spot.

All Might: (let's the legs go and grabs the hand) If this is the best you can do, than you picked the wrong place to attack. You should just give up now.

Cynthia sees the opportunity, and goes to attack the hand villain. He mostly just dodges her strikes, but as the others watch, Arc couldn't help but imagine his mother being killed. The thought of it made him desperate to try and prevent that, so he came up with an idea.

Arcturus: Everyone, stay here. I'll be right back.

Everyone: Huh?

Wanda: Arc, what're you planning?

He doesn't respond, and instead runs off with Aizawa. He picks up Thirteen as well and runs all the way back to UA. Once there, he drops them off at the nurse's office, and returns to the front gates. Arc crouches down to a running position, and charges up his speed.

Arcturus: (thoughts) I've only done this move a couple of times. So it's best I make it count.

At the same time he's doing this, Izuku couldn't take it anymore, and runs back as All Might was getting dragged into the portal.

Tsuyu: Midoriya!

Mineta: Are you crazy?!

Shuri: It's too dangerous!

Izuku doesn't hear them and keeps running despite the immense fear he was feeling.

Izuku: (thoughts) There's still so much I want you to teach me. This can't be how it all ends. It just can't! I'm coming!

All Might: (sees him) Midoriya?! What do you think you're doing?!

Cynthia: Izuku, stop!

He lunges to them as Cynthia breaks off to catch him. Kurogiri then appears in front of Izuku to attack him. Everything felt slow as Wanda, Shuri, and Robbie run to help them and Izuku was in mid air.

Back at the school, Arc charges up and breathes out.

Arcturus: Here we go!

He runs. Going as fast and as strong as he can, Arc pushes himself to higher and higher speeds to break through the sound barrier. As he makes it back through the training area, Arc runs past everyone and jumps up in front of Nomu.

Arcturus: (thoughts) This is gonna hurt! (yells) SUPER SONIC PUNCH!!!

He then lands a solid punch right on its exposed brain. The force was surprisingly strong to actually make some bones crack and damage his head. As he does this, Katsuki appears in and blasts Kurogiri away.

Katsuki: Get the hell outta my way, Deku!

He slams the villain to the ground and Nomu's legs start to freeze and his right arm. Robbie makes it in time to throw a fiery chain around the left hand. It gave All Might the advantage to escape the grip.

Shoto: (to the villains) One of your poorly trained thugs told me you're here because you think you can kill All Might.

Robbie: No way in hell we're letting that shit happen.

Kirishima and Shuri jump in to hit the other villain, but he dodged away.

Kirishima: Aw man, that was gonna be cool.

Shuri: There's always next time.

Katsuki: (grins) Guess I found your body this time, ya smoky bastard!

Shoto: The Symbol of Peace will not be defeated by delinquents like you.

Shigaraki: Kurogiri. How could you let this brat get the best of you? You've gotten us into a real jam here.

Katsuki: Heh. You got careless, you dumb villain. It wasn't hard to figure you out. Only certain parts of you turn into that smoking warp gate. You used that mist to hide your actual body, as a kind of distraction. Thinking that made you safe! That's why we missed. 

Kurogiri: You live up to your school's reputation, just like that other boy.

Katsuki: Don't lump me in with that extra! But another thing, if you didn't have a body, you wouldn't be wearing this neck armor, right? You're not immune to physical attacks if they're well aimed.

Kurogiri tried moving again but was halted once again by a small explosion.

Katsuki: Don't move! You try anything funny, and I'll blow your ass up right now, you got it? They'll be cleanin' you up for weeks. 

Kirishima: Oh, that doesn't sound very heroic.

Wanda then uses her power to pull Cynthia back while Arc joins them. He was also flexing his hand as the force from the punch still damaged it. 

Wanda: You okay, Arc?

Arcturus: Yeah. That just hurt. (thoughts) My hand's not broken, but it will be if I punch like that again.

Shigaraki: They escaped uninjured and captured my two strongest men. Kids these days really are amazing. They make the League of Villains look like amateurs. Can't have that...

Cynthia: Why are you kids still here? All of you need to head back with the others now!

Katsuki: As if! These bastards wanna fight, so I'm all in for it!

Arcturus: Don't worry about Mr. Aizawa and Thirteen. I got them back in time.

The hand villain then began chuckling.

Shigaraki: If you brats think this is over, you're poorly mistaken. Nomu.

Nomu then moves through the void, resulting in its arms and right leg being chopped off. But despite the clear injuries, it was active. The heroes are shocked by this.

Shoto: How is that thing still moving?

Kirishima: He's all messed up.

All Might: Stay back everybody!

The ice breaks off, and they see the actual bone and mussels healing themselves.

All Might: What is the meaning of this?! I thought you said his power was Shock Absorption!

Shigaraki: I  didn't say that was his only quirk. He also has Super-Regeneration. Nomu has been modified to take you on even at 100% of your power. He's basically a highly efficient punching bag that hits back.

Everyone was now on edge.

Robbie: He has two powerful quirks? Is that even possible?

Shuri: In some cases, yeah. Hell, there's a high probability it has more than two.

Shigaraki: First, we need to free our method of escape. (turns to Katsuki) Get him, Nomu. 

Nomu was soon fully healed, and then rapidly disappeared. However, Arc and All Might saw that the beast was moving very fast and was going for Bakugo. 

All Might: (thoughts) He's fast!

Dust was kicked up as the Nomu successfully rushed Bakugo and Kurogiri causing a severe wind pressure to hit the pros and students.

Shoto: Such force.

Izuku: Kachan! 

The dust settled as Bakugo was sitting down next to us as Arc was kneeling next to him.

Izuku: Kachan? Whoa, that's awesome, you dodged him!

Katsuki: Shut up, no I didn't, you damn nerd. That speed... I couldn't even see him coming.

Kirishima: Then how'd you get over here?

Arcturus: Isn't it obvious? I managed to get in there and grab him before it hit.

(short flashback) 

All Might and Arcturus ran over and Arc got Katsuki away while All Might took the full force of Nomu's attack. 

(short flashback ended) 

Katsuki: I didn't need help, Lightning Prick!

Arcturus: (sarcastic) You're welcome, Bomb Bitch. (thoughts) That thing was way too fast, even for me. A second later and Katsuki would've been a bloody paste on the ground.

Wanda: Seriously? Cut it out already!

Robbie: She's right. I think we have bigger problems... 

They all look over and see All Might was the one who took the hit, his arms crossed as he was standing in a crater in a wall.

Shigaraki: So, he protected the children, huh?

All Might: These are kids and you didn't hold back?

Shigaraki: I didn't have much of a choice. He was threatening my companion. Besides, these kids are no angels. The plain and fast looking ones? They tried to kill me with a maxed out punch and kick. What kind of "hero" does something like that? You think you can get away with being as violent as you want if you say it's for the sake of others. Well, you know what, All Might? That pisses me off. Why do people get to decide that some violent acts are heroic and others are villainous? Casting judgement as to what's "good" and what's "evil." You think you're the Symbol of Peace? Ha. You're just another government-sponsored instrument of violence. And violence always breeds more violence. I'll make sure the world understands that once you're dead.

Cynthia: You done? Because all I see from you is a lunatic with a jacked up notion of reality.

All Might: Criminals like you; you always try and make your actions sound noble. But admit it; you're only doing this because you like it. Isn't that right?

The villain doesn't respond but narrows his eyes.

Shigaraki: They've got me figured out.

Shoto: We've got them outnumbered.

Izuku: And Kacchan found the mist guy's weakness.

Kirishima: These dudes may act really tough, but we can take 'em down now with All Might and Wyvern's help. (readies quirk) Let's do this.

All Might: Don't attack. (students gasp) Get outta here.

Shoto: You would've been in trouble earlier if it weren't for Reyes and I, remember? You need our help.

Robbie: He's right. Their souls scream with a vengeance to you.

Wyvern: You kids did good, but this is different from a common crook.

All Might: (holds fist out to them) It's gonna be alright. Just sit back and watch a pro at work.

Arcturus: With all due respect, sir, this is our fight as well. You can't beat the big guy and handle the other two at the same time. And we're gonna fight tough guys like this eventually, so now's the time to learn how.

Izuku: (worried) And you're too hurt. You're bleeding. And you're almost out of ti—

He stops himself from speaking further, but was still worried. All Might gives him a thumbs up to try and reassure that it'll turn out good. The gears in Arc's head then clicked at something.

Arcturus: I think I have a plan to help beat this guy.

Wanda: How?

Arcturus: We saw him recover his injuries from being ripped apart. However, if we were to deal enough damage to nearly shred him, it'll give Ma and All Might a shot at beating this thing.

Shuri: So, how do we do that?

All Might looks back at the villains and clenched his hand.

Cynthia: As much as I hate to say it, he's got a point. They're gonna have to fight tough enemies sooner or later. So, if we want them ready, we should start now. 

Despite now wanting to get them involved, All Might knew she was right. He barely had a minute left in his form and his power's declining. 

All Might: Very well, young Farron. What's the plan?

Arcturus: I can blow a hole right through that thing, but I'm gonna need some time. Can you and Ma keep him busy?

All Might: Absolutely. 

(cue the music) 

https://youtu.be/iYZIUtDAFIw

The two pros he in stances with Cynthia growing dragon claws and her eyes becoming dragonoid. Once they're ready, they charge straight towards the Nomu and they clashed fists. They breaking out into impossible speeds and threw an insane number of punches.

Wanda: Okay, Arc. While they're fighting, what's the plan?

Arcturus: We're going to help deal a lot of damage. I need all of your guy's help.

Katsuki: Who do you think—?

Arcturus: Katsuki, for once in your life, shut the fuck up and listen to me. Trust me, I know how we can beat him.

Katsuki: (grits his teeth) Fine.

Arcturus: I'm gonna do a similar move like before, only this time, I'm blowing a hole right through him. Once I do that, Izuku, Wanda, Katsuki, you three hit him with everything you got. Kirishima, Shuri, give them a boost to help make sure they hit the target. Robbie, burn it up to the point it can barely regenerate and Todoroki, use your ice to freeze it to prevent it from fully recovering. Once that's all done, All Might and Ma can finish it off. Wait for my signal.

Everyone: Right! 

Arc then turns and runs back to the outer edge of the area. Once there, he starts to run around in circles while building up power and speed. After a bit, he turns from the entrance and moves to the Nomu while to doing a tuck'n roll, but still moving and going fast enough to create a blade around him with the lightning.

Arcturus: SPIN DASH BUZZSAW!!!

The two pros jump away and Arc struck Nomu in the chest hard enough to shoot right through him, nearly splitting him in half. The regeneration process began, and that's when Arc called the others.

Arcturus: NOW!!!

Unfortunately, due to the force of the attack, Arc lost control on his momentum and crashed into a nearby wall like a bowling ball hitting some pins.

Izuku: ARC!!!

Cynthia: He'll be okay! Take your shot now!

They do that with Kirishima throwing Izuku and Katsuki forward and Wanda shooting her hex on the ground to launch forward. Shuri gave them an extra boost by triggering her suit's kinetic field and sending them forward.

Katsuki: DIE!!!

Izuku: SMASH!!!

Wanda: TAKE THIS!!!

The three hit Nomu with their attacks with the boys punching/blasting it and Wanda firing a blast of her quirk at it. It resulted in the wounds being bigger and as it tries to heal up, Robbie unleashed a torrent of fire on it, giving it 3rd and 4th degree burns, making it scream in agony. It only stopped when Todoroki freezes it with ice, preventing it from healing.

(If it's not here already, move music to 2:06)

As the beast was struggling, All Might and Wyvern land in front of him.

All Might: Now for a lesson. You may have heard these words before...

Cynthia: But we'll teach you what they really mean!

The two charge up their fists, ready to hit it with their final punches. 

All Might: Go! 

Cynthia: Beyond! 

Both: (punched Nomu in the chest) PLUS ULTRA!!!

The strike completely destroys Nomu and launches it high in the air and breaks out of the stadium. The force was so strong, it caused the entire area to shake from the force. As people were in shock by the display, the pros relaxed a bit.

All Might: I really have gotten weaker. Back in my heyday, five hits woulda been enough to knock that guy out. 

But today, it took more than 300 mighty blows.

Cynthia: (scoffs) Whatever you say, old man.

(end music) 

From Arc's position, he was in rubble as pretty banged up from using two strong moves back to back. His vision was slightly blurred, but he could see that despite the bird monster being launched away, the other two villains were left.

Arcturus: (thoughts) The plan worked, but there's still those two. Come on, body! Get up!

Hitomi had arrived and saw what happened. 

Hitomi: (thoughts) Incredible. They were able to defeat the brain monster villain. So, this is the power of All Might and Wyvern. 

Shigaraki: No... He beat me. He's not any weaker at all. And look what he did to my Nomu. He cheated!

All Might: What's wrong? Not attacking me? Didn't you say you were going to clear this level earlier? Well, come and get me, if you dare.

Shoto: As I expected. There's no reason for us to fight now. He'll handle this.

Kirishima: Come on, Midoriya. We should regroup with the other guys. The last thing we wanna do is get taken hostage or get in their way.

Izuku: (thoughts) This isn't right. He can't beat them, he's bluffing. It's almost hidden by the dust, but I can see it. The steam coming off his body, it's the same as when he's about to transform. He's out of time. 

All Might: (thoughts) Crap. I can't fight them, that Nomu guy took too much out of me. I'm pretty sure if I make one more move I'll be forced to go back to my weak form. I can't keep this up much longer. I'll have to stall until they get here. (speaking) What? Are you scared? (thoughts) They're hesitating. Maybe this'll work. They're so close to surrendering or at least running away.

Shigaraki: If only Nomu was here... (starts scratching himself again) He's rush you right now, pound you into the ground without second thought.

Kurogiri: Tomura Shigaraki! Please, do not fret. Look at him. He has definitely weakened. Nomu's attacks were successful. He's on his own. Wyvern has lost almost all of her strength. The children appear to be frozen in fear. And, look, our underlings are recovering. We likely still have a few minutes before their reinforcements arrive. If you and I work together, we can do this. We haven't missed our chance to kill All Might.

Shigaraki: (regained his confidence) Yeah. Yeah, you're right. This is it. We have no choice. We have to do it now. I mean, the big end‐boss is right here.

Kirishima: I think All Might can hold his own against those two main guys. Let's make sure these dude won't hurt anybody else.

Shoto: (looks at Izuku) Will you be joining us?

Izuku: (thoughts) Arc, Cynthia, and I are the only ones here that knows what's going on. There's no way he can move faster than the mist guy now. He has to have gone past his limit already, there's no question about that. If villains toy with him, he's done.

He tries to get up, but his limbs were struggling. 

Arcturus: (thoughts) Damnit! I used more power than intended. My body's a bit banged up from that last attack, especially hitting those objects. But I can't back down now! Get up, damnit! 

Shigaraki and Kurogiri began to make their way over to All Might.

All Might: So this is it. (thoughts) Shit! This is bad.

Shigaraki: Consider this revenge for what you did to Nomu!

All Might: (thoughts) Where is everyone? I need backup!

Izuku leaps up with One For All to try and save All Might, breaking his legs in the process

Shoto: (surprised) So fast. 

Izuku: (thoughts) I'm the only one here that knows how much trouble he's in.

Kirishima: (surprised) Whoa, Midoriya!

Izuku: (thoughts) I controlled it earlier, but my legs broke this time. It's alright though I made it, I can hit the part of his body that's hidden. I can end this now.

Arcturus, Hitomi, and Wanda: No, IZUKU!!!

Izuku: Don't you touch All Might! You stupid villain!

A warp gate appears in front of Izuku as a hand comes through it, belonging to Shigaraki.

Kurogiri: I won't fall for that again.

Arcturus: I recognize that hand!

Arcturus used his strength to get up and speed forward to save him, but then something surprising happened. Shigaraki's hand was shot, courtesy of Snipe as the rest of the UA facility showed up with Iida in the front.

Iida: Your class rep has returned! I've fulfilled my duty, and I've brought reinforcementsI

Shoto: If all the pro teachers are gathered here, it must mean the rest of the school's safe.

Katsuki: The villains attacked this facility, but not the rest of the campus.

Kirishima: Midoriya, hey!

Izuku: Sorry, I can't get up.

Kirishima: What? Are you okay?

Hitomi: Don't worry, we're coming!

Arcturus: (thoughts) Crap, All Might is about transform form soon! (speaking) Kirishima, Hitomi, wait- 

A cement wall came up and stopped them from getting close to the two.

Cementoss: For your safety, please stay back, you three. Join your classmates at the front gate. Leave the injured to us, we can take care of them.

Hitomi: Oh, okay.

Kirishima: I'm on it! Hey! He said for all of us to head to the entrance!

The pro heroes almost finishing the rest of the villains, they heard a small clapping and it speak with a dark and robotic voice.

???: Bravo, bravo. I gotta say, you heroes never seem to amaze me, especially the dramatic surprise. I'll give 5 points for the scene, 7 when I heard the PLUS ULTRA shout. 

They then see a person with his hands on his pocket. He wears an outfit similar to the character name Death from the movie Puss in Boots. But the chest amour would have a skull in it, and he wears a mask like Reaper from Overwatch with a crimson glowing eyes. And finally had a gauntlet and has two sickles to both sides of his hips. 

(shoutout to @DragoDeion for his villain outfit for Season 1-2) 

Shuri: Who is that? 

???: You talking to me? You talking to me? I'm the only one up here, so you must be talking to me.

Robbie: (Claire's, firing appearing) Was that supposed to be a joke? 

???: (shows his hands) Woah, easy man. You never how to take a joke. (about to step out of the edge, then start walking down in the air) You know, that fire quirk dose suits you. It's no wonder why you're a hot head. Like seriously, have you ever taken a chill pill? Or someone with a cold quirk might cool your head enough. But if you want to know, let's just say that I'm a new villain in town. You may call me Legion. 

(I'm not good with a villain name, if you guys have any ideas please let me know) 

 Then the masked (AKA Y/N) looked at the damage Shigaraki has over his body. 

Y/N: See? I told you that plan of yours won't work. I mean, seriously. What part of the Symbol of Peace do you not understand?

Shigaraki: (growls) Shut up!

Shoto: Hold on. What do you mean you are a new villain in town?

Y/N: The real question is: Why did I become the villain in the first place? Let's just say that two of the Class 1A students are the ones that made me a villain, and It's all their fault that they created something that made you wish that you never want to be a hero, or the matter of fact you wish you never had a quirk in the first place. The same people who treated me badly to become a villain in the first place. And I wanted to show those people who treated me so much pain they've given me for revenge. I mean after all...ONLY A TRUE VILLAIN WOULD THINK THAT!!! RIGHT HEROES?!?!

That mad Arc, Wanda, Izuku, and Hitomi were shocked cause of what he said those words. 

Wanda: W-What did you just say?

Y/N: (smirked beneath his mask) You know soon enough to know who I really am. Let's just say..(points to the group, but truly pointed to Katsuki and Hitomi) Everything I'm about to do. It would be all your fault. (looks at Kurogiri) Kurogiri, we're leaving.

Kurogiri: As you wish. 

He used his Warp Gate quirk as he, Y/N, and Shigaraki went through to escape. 

Arcturus: Wait!

Then Arc tried his quirk to stop the masked one, but it was too late. He sees a note that said... 

"If you want to know who made me. My first clue is one man and one female that you know from the past."

Arcturus: (thoughts) What does that mean? 

Arcturus: (narrator) That day, we learned what pros could do. And what they fight to keep us all safe. It was a revelation we weren't prepared for. But somehow, we survived.

(with Y/N) 

Kurogiri warps Y/N and Shigaraki back to the bar where their base was, Shigaraki was on the ground bleeding while still in pain.

Shigaraki: Ow... Shot in both arms and legs. All those underlings wiped out. Even Nomu was beaten. We failed. Those kids were so strong. And the Symbol of Peace wasn't weakened at all. You were wrong, Master! So wrong!

All For One: No, I wasn't. We just weren't as prepared as we should've been.

Dr. Kyudai: I agree. We underestimated them. Thankfully, we failed under that cheap "League of Villains" name and not our own. 

Y/N: (took off his mask) Speaking of which, where the hell is that Nomu that you had doc created?

All For One: Yes, why is he not with you?

Kurogiri: He was blown away.

Dr. Kyudai: What?! 

Kurogiri: It was All Might and Wyvern's doing. Without coordinates to his precise location, I couldn't use my warp to bring him with us. We didn't have any time to search for him.

Dr. Kyudai: This is a travesty! And after all we did to make him as powerful as All Might.

All For One: Well, I suppose it can't be helped. Unfortunately.

Shigaraki lets out a yell of pain as Y/N and Kurogiri help him up. They walk into his room and place him down on his bed as he winces in pain. As Kurogiri gets the first aid kit, Y/N stays with him. He comes back and patches Shigaraki up. He's lucky to have made it out at all and wasn't caught by pros. As Kurogiri finishes patching up Shigaraki, Y/N asks him what happened.

Shigaraki: He....cheated....

Y/N: Excuse me?

Shigaraki: He fucking cheated.... Nomu was supposed to kill him....

Y/N: I mean, I told you it wouldn't work.

This causes Shigaraki to lunge at Y/N, as he tries to uses his quirk on him, but Y/N reaches quick enough and uses Rivet Stab, as black tendrils extend from his fingers and hold Shigaraki in place as he's pinned to the wall.

Shigaraki: Let me go...!

Y/N: No, I don't think I will. Sometimes I feel like you've forget who I am.

Shigaraki: I kill you....

Y/N: Good luck with that. Now listen, just because your first planned failed, doesn't mean that it's totally over. This is why, you think and plan ahead.

Y/N releases Rivet Stab and lets Shigaraki go. As he lands on his feet, Y/N throws a photo in front of him. Curious, he picked it up with some fingers and looks at it.

Shigaraki: Who is this?

Y/N: Someone making a name for himself. I think he can help us, that's if he wants to.

Shigaraki: He doesn't look like much. What is making him so popular?

Y/n: He's going around killing any heroes he sees as false and unworthy. I can kinda see why. Some heroes go out there just do it for the fame and glory.

Shigaraki: And what do they call this guy?

Y/N: The news calls him Stain: The Hero Killer.

Chapter 5 ended. 

I hope you like this part. And with that, season 1 is done. Which means it's time for season 2. If you guys have some ideas for it, let me know at the comments below. Peace out and enjoy!