Vengeance

All for One: I think I will postpone the day my dear killer, I have no intention of dying tonight.Izuku: Too bad.

Izuku took out both of his swords.

All for One: Tell me why did you kill my heir?Izuku: I will destroy everything related to you. Tonight I will end it all. You and All Might will die.All for One: HAHAHAHAHA, and waht makes you think I will let you kill me?! You will be the one to end up in a grave tonight.Izuku: If that is my destiny then so be it, but I will drag you to hell with me.All for One: That's the spirit! Lets fight to our deaths Vendetta!

Meanwhile, as the conversation between the two was happening behind a wall we can see 5 UA students. Their faces had the greatest expression of fear they could muster, some were even about to puke. The auras of the two monsters standing just a few meters away were enough to send shivers down to their very soul. Being in the presence of this two beings made them remember just how big and dark the world truly is and also how they are just not ready enough for it.

Momo and Shi were holdinh back the erge to puke, Todoroki and Tenya were petrified and Kirishima was holding back his breath. Through their minds played time and time again the scene of their horrible deaths if they were ever to be find.

Shi: 'This is All for One, All Might?...... Vendetta..... He is also here..... And Bakugo..... He is dead....'

The image of Bakugo's corpse coming out of the portal would haunt her for the rest of her life. Shi took one hand to her mouth and the other was clutching her chest. She just couldnt beleive what was happening.

Suddenly the sound of a blast broke her out of her trance.

In the battlefield we can see Izuku dodging an air blast coming from All for One. Izuku jumped and landed on the other side. All for One tried again but this time Izuku jumped over the blast and landed close to All for One. He tried to cut him down using his swords but All for One was faster amd dodged the two incoming cuts. All for One then released a blast in Izuku and sent him flying back. All for One then used Forced Quirk Activation to try and trap Izuku using his tentacle-like fingers. Izuku simply cut through them. Izuku then put one of his swords away and took out a gun. Three shots he let against All for One and the three he dodged. Izuku then putted the gun away and took the other sword and went charging against All for One.

Izuku didnt expect for All for One to come charging at him. All for One then elbowed Izuku sending him flying back with a few broken bones. Izuku then rolled and dodged an incoming punch from All for One. Izuku took out a knife and managed to stab All for One in the leg. Then using his sword, he slashed against All for One. All for One wasnt quick enough to dodge so he was still slashed in the abdomen though only superficially. As All for One was stepping back, Izuku then threw a grenade at him, the grenade exploded in All for One and send him crashing back. Izuku the jumped to where All for One was and was about to slash him, but All for One used an air blast, but to the surprise of All for One, Izuku spinned in mid air and dodged the blast, he then landed and was about to kill All for One, but suddenly the both heard a scream.

All Might: VEEEENDEEEEETTAAAAA!!!

Suddenly All Might arrived and punched Izuku in the face and sent him crashing back. When All Might landed, All for One used an air blast on All Might and sent him back. All for One then stood up.

All for One: I have to thank you for getting me out of that situation All Might!All Might: Dont mock me All for One! I will bring you to justice for once and for all and I will make sure that killer faces the consequences of his actions!Izuku: YOU WILL BE THE ONE PAYING THE CONSEQUENCES!

From behind the wall with the students. They didnt recognize the new voice..... But Shi did.

Shi: 'That voice.... No.... I didnt want it to be true....'

Back in the battlefield.

All Might and All for One turned to see Izuku coming out of the rubble, his mask fell off so now they could see his face. The punch of All Might had left a visible mark on Izuku's face. The mark in his cheek was really noticeable, his nose was bleeding as well as his ear, and one of his eyes was even blind now from that punch.

All Might: A..... Kid?!...... No way.....All for One: Oh so you are really a kid? HAHAHAHA, how amusing! I cant beleive this is the one who was been terrorizing us! HAHAHAHA...

All for One stopped laughing as he then felt a strong killing intent from Izuku, All Might was disturbed that this aura was coming from a teen.

Izuku: You will both pay! You beleive yourself as gods dont you?! You both think you can do whatever you want while stomping on other people's lives right?! This will all end here! I will make you pay for EVERYTHING you have done. The judgement has begun!

Izuku then was quick to charge against them using his swords, he was quick to stab All Might in his weak spot, making him vomit blood, he then charged against All for One and threw another grenade at him, sending him back. All Might then returned and tried to punch Izuku but he ducked under it and the stabbed All Might in the arm, he then slashed All Might in the abdomen, he took out his sword out of All Might's arm and the pierced All Might's weak spot with both of his swords. All Might vomitted more blood and was even beginning deflate. All for One then tried to sneak attack Izuku from behind but he felt his presence. Izuku ducked under a punch and then turned and raised himself and both of his swords. All for One tried stepping back but Izuku still cut a bit through his shoulders. Izuku then stabbed All for One in his abdomen. All for One flinched from the sudden pain. Izuku then ducked under a punch of All Might from behind. All Might's punch ended up landing in All for One's face, destroying his mask and sending him back flying.

Izuku then used his swords and stabbed All Might in the leg. All Might fell down in pain to the floor, half powered and half skinny. Izuku turned and stood above All Might. He raised his swords to kill him when suddenly he was kicked back by Gran Torino.

Gran Torino: Toshinori! I will deal with the killer! You must take down All for One!

Gran Torino the proceeded to keep on attacking Izuku. Izuku has having a hard time at first against Gran Torino, who managed to land significant blows against him. Izuku then started to adapt and managed to block most of the punches. Izuku tried to counterattack then. Izuku notices that Gran Torino's quirk came from his feet so he mustered his best precision and as Gran Torino passed around, he maged to chop off his feet using his sword. Gran Torino landed on the floor Izuku then charged back his sword and stabbed Gran Torino in the heart.

Shi: NOOOOOOOOOOOO!!

Shi suddenly came and punched Izuku in the back of the head sending him back. Shi can only use 5% of One for All.

Gran Torino: Shi.... What are you doing here....Shi: I came with my friends to rescue Bakugo.....Gran Torino: Oh..... Where are your friends now.....Shi: I told them to leave....Gran Torino: You should have gone with them....Shi: I couldnt leave if you and All Might are bleeding your life away!Gran Torino: Dont die kid.....

With that Gran Torino died in the hands of Shi. Shi stood with tears in her eyes and looked to Izuku who was looking at her.

Shi: Is this who you truly are?....Izuku: This is who I was forced to be....

Izuku then charged at Shi. Shi jumped over him and tried to kick him in the back, but Izuku turned and blocked the kick. Izuku then pushed Shi back. Izuku pressed on and kicked Shi in the face. Shi tried standing up to punch Izuku, but Izuku kicked her in the back of the head. As Shi was falling to the ground, Izuku kneed her back and she fell to the ground. Shi looked up to see Izuku had pulled back his sword, ready to stab her.

As Izuku was seeing Shi, he suddenly had a flashback of the mall.

Shi: Yeez you sound like my mom! Izuku: R-really?Shi: Yes! She is always telling me to be careful and is worried sick about me.

Izuku then pushed out his sword.

Shi was stunned as Izuku's sword landed next to her. Izuku pulled back the sword. Shi looked up to see Izuku had lowered his head.

Izuku: You should be more careful you know..... Your mother is wating for you back home....

Izuku then turned around and went to where All for One and All Might were.

We can see a skinny All Might with one buffed hand and All for One still standing on the floor.

Izuku then charged against All for One and slashed his back. All for One turned to be greeted by a slash in his face. Izuku then also made many cuts all throughout All for One's body.

All for One: I wont let you take this victory from me boy!

All for One the turned his hands into a bunch of pointy rivets. He then in a swift movement chopped off Izuku's hands and then punched him in the chest, which opened a hole in his stomach and was then pushed back.

All for One: Now, All Might!

All for One then began to float in the air and prepared his arm with all his quirk combinations, turning it into a giant amalgamation of many things. All for One then charged against All Might and their punches collided. All for One was pushing All Might back, but then All Might managed to stop All for One in his tracks, turning it into a stalemate.

All Might was then surprised by what he saw behind All for One. All for One also felt a prescence and turned his head.

Behind All for One, Izuku was jumping towards him with part of his sword's blade in his mouth, which had broken off in the last attack. As Izuku got closer to All for One, he mustered all his force. It all happened too fast from here. Izuku mamaged to chop All for One's head using the blade in his mouth. Izuku then moved quickly on All for One's arm and approached All Might, he jumpes towards him and then used the blade and stabbed him in the throat. Izuku flew past him and landed on the floor. All Might's and All for One's bodies then also fell to the ground, both dead. Finally Izuku's vengeance was complete.....