The Next Morning

Shigaraki and what is left of the league wake up to find that Toga is missing from their group, where Shigaraki was sleeping there is a knife mere centimeters from where his head once was with a note stabbed through it. Shigaraki pulls the knife from the ground and pulls the note from the blade of the knife and unfolds it.

Shimura Tenko

I refuse to take part in the league of villains due to your actions last night regarding the child Midoriya Eri. Seeing her in the pain that Kai Chisaki had inflicted on her has awoken something in me and I can't stand to see her harmed or anyone else for that matter. If you have noticed where the knife was, I had a very easy chance to kill you silently in your sleep but I decided against it. I am bringing the information of your plans to the attention of the council of heroes and UA. I will not stand to see the child suffer as I have suffered due to my quirk. By the time you are reading this I will be far from Kamino and you likely will never see me again. This is my chance to redeem myself for my sins but You are irredeemable and deserve a slow agonising death but that act doesn't belong to my hands. I didn't kill you because that honor belongs to a true hero.

Don't bother finding me

Toga Himiko

Reading the note Shigaraki's face contorts into one of rage and fury that cracks his lips even more than they already were. This causes them to bleed as he crumples the note in his hand causing it to decay as he lets out a scream of rage and throws the knife into the wall causing the blade to shatter when it hits a steel I-beam. The remaining members of the league look on in a mix of confusion and fear of their leader's rage.

"Fuck! Korogiri! Contact Dr. Akuma now! We have to move. That bitch was a traitor this whole time!" Shigaraki screams out as he snatches up his things scrambling to leave. "I suggest you lot collect your things we need to move. Toga has deserted us and gone to the heroes side she has all of our plans." Korogiri says as the others begin to collect their things getting ready to warp to the next place.

"Wait... not all of them there is one more that only me and Sensei know of." Shigaraki says in a cryptic fashion causing the others to stop and turn towards him. "We are going to amass an army and attack the Cerberus. I will be the new All for One." Shigaraki says with an evil grin before bursting into maniacal laughter.

One Week Later...

After completing the make up license exam Bakugou, or by the hero name: Catalyst, finds himself on a patrol with Best Jeanist and two other sidekicks much like his internships. What the pro and sidekicks don't notice is a blonde haired women tailing them from several meters away, but Bakugou does. He recognises her out of the corner of his eye as one of the villains that attacked the training camp and had kidnapped him. He pretends not to notice her as he continues his patrol and eventually gets back to Best Jeanist's headquarters. He changes out of his hero costume and says goodnight to Jeanist and his allies before heading back to UA. During his walk he notices that Toga is still following him, seeing this he slows his pace slightly to allow her to catch up to him slightly. He begins to plot on how to deal with her when he notices that she appears to be unarmed but he doesn't let that fool him so he decides to confront her.

"I know you're there Toga Himiko, come out so I can get this over with." Katsuki says alerting Himiko as he turns to face the direction that she is in and raises his arms in a defensive pose preparing himself for a fight.

"I'm not here to hurt you, I deserted them and I need your help." She responds walking into view holding her hands up so Katsuki can see her.

"How do I know you're not planning something or lying to me?" He asks as Himiko stays silent, getting agitated Katsuki sets off some explosions in his hands to intimidate her into talking. "TALK DAMN IT OR I'LL KILL YOU!" He shouts setting off the explosions.

"It's about Eri!"

"What?"

"Shigaraki plans to kidnap Eri and use her blood to manufacture more quirk erasing bullets to kill heroes. His targets are All Might and Deku. He was the one to exploit the laws to get the police to take her from UA." She answers as Katsuki looks on in confusion, then he drops his hands seeing Toga closing her eyes flinching as in anticipation to getting hit.

"You're coming with me Blondie, I'm taking you to Tsukauchi he will tell me if you're lying or not." Katsuki says taking a pair of quirk canceling cuffs from his bag, containing his hero costume and gadgets, and cuffing her before escorting her to the police station where Tsukauchi works. "Thank you..." Toga says as Katsuki finishes putting on the cuffs and begins to walk.

"The hell are you on about blondie?" He asks raising an eyebrow at her peculiar response to be put in handcuffs.

"For believing me, I want to right the wrongs I've done I want to help you all bring the league to justice." She says resting her head on Katsuki's hand as he pushes her from the shoulder towards the police station.

"A part of me wants you to be telling the truth, I hope you are and this isn't some sick trap. But there's something that the league doesn't know about the girl." Katsuki says with a sigh as they continue their walk to the station.

"What is that?"

"She's now a baby, her quirk when haywire and activated on herself. She's now a seven month old infant." Katsuki responds as Toga's eyes suddenly widen in shock of what he just said.

"That's not good, if shigaraki gets his hands on her there's no telling what he will do to her." Toga says as they enter the police station coming into a room with four police officers and Tsukauchi himself in there.

"Detective, I have captured the villain Toga but she has something that we need your quirk for. She says that Shigaraki is trying to take Eri and she is also saying that she wants to become a hero to bring them to justice. I need you to find out if she's lying or not." Katsuki says as the cops take Toga from him and Tsukauchi walks over to him.

"I will contact All Might, Nedzu, Deku and Aizawa. I will also contact psychiatrist Horimoshi to help out as well." tsukauchi says as he leads Katsuki to a cruiser where they are transferring Toga to the Cerberus.

Three hours later...

With the phone call that a member of the vanguard action squad has been captured, Nedzu quickly contacts Deku, Aizawa and All Might to head to the cerberus where Toga is being held. Hearing this Izuku quickly puts on his hero costume and meets up with Aizawa and All Might after saying goodbye to Ochako. Once meeting with the three heroes, they get into All Might's car and head down to the cerberus maximum security prison which holds some of the world's most dangerous villains including All for One himself. The car ride to the facility was near silent aside from the AC and engine of the car, they arrive at the facility after what felt like the longest hour of Deku's life. The four of them exit the car after going through 5 security checkpoints and walk inside after going through another checkpoint. They meet up with Katsuki who is standing outside an interrogation room where Toga and Tsukauchi are talking. In the room Toga is telling Tsukauchi everything that she knows and when she stops Tsukauchi turns to the one way mirror and holds up a single piece of paper that says the word "Truth" On it meaning she can be trusted... for now.

"What did she tell you?" Aizawa asks as the four of them take a seat in the observation room.

"Shigaraki is after Eri he wants her for her blood to cancel out Deku's quirk and to kill All Might. He wants to kidnap her and take her to All for One's doctor to resume the experiments. She said that she left the league because she couldn't stand letting her get hurt claiming it to be her maternal instincts kicking in. now we know she was telling the truth." Katsuki says as the others sit down in the chairs in the room.

"Does Shigaraki know that she is now an infant?" All Might asks as Katsuki shakes his head no in response.

"No, I told her that Eri is now a baby and she said that he has no knowledge of this. She doesn't know the location of this doctor but she said to keep our guard up because he is plotting against us." Katsuki continues as Izuku loses interest in what he has to say and stares down the corridor at a cell marked with the name All for One.

As Katsuki talks with the three pro heroes, Deku gets up from his chair and walks to the door at the end of the hall. The three heroes know that All for One is Izuku's father as told by All Might and let him go down the corridor to the marked cell. Getting to the door, Izuku presses the button opening the visitor's portion of the room revealing his father strapped to a chair with multiple medical machines still attached to him, beeping in rhythm with his ancient heart. All for One recognises the presence in the room and looks at his son with his inferred quirk studying what little details he sees of his son.

"Do you remember when we were a family... Mikumo?" All for One asks using Izuku's childhood nickname that he has been called by only his father. "Before I ended up like this... before I left?" Hisashi asks as Izuku sits in a seat behind the 20cm thick glass.

"No, my memory doesn't go back that far... Father" he answers looking at the faceless man in front of him.

"I expected not you were quite young. I know you see me as this evil entity that has ended the career of your master but know this... I have done far more for you than what you realize."

"Like what?! You left when I was 2 and the only thing I remember of you is that you can breathe fire! What could you have done for me in the past 18 years?"

"You remember Doctor Sosuke Akuma don't you? You are not quirkless my son. We have the same power, Doctor Akuma is my doctor and when I found out that you were of the age of developing a quirk I had Akuma falsify your records to keep you safe. He told you, you were quirkless to keep you from becoming me. Tell me what you think would've happened if you were told you had a quirk that steals others?"

"..."

"You would have been ridiculed for being a villain even though you wanted more than anything to be a hero. Your treatment would have been far worse than what it was when the world thought you were powerless. Who do you think was the one who got you your Onesie that you wore daily? Supported you and your mother so that she never had to work? It was me, I may be an evil man who has done some unspeakable acts in my centuries but there is one thing I would never do and you know what that is?"

"No..."

"I will never allow you to be hurt. In my game of chess the league are but pawns take a guess what you are on that chessboard... You Are The King and I have done everything in my power to aid you through life. Who do you think sent that sludge villain after you and Bakugou Katsuki? I am the reason why you now hold both One for All and All for One."

"..."

"I have something to tell you and show you. Within hours of this conversation I will be dead there is a tumor inside my brain that is going to end my life before I may see the dawn of tomorrow. This picture is of you, me and your mother I wish for you to keep it with you in memory of times where this wasn't the reality. Do it as a last wish of your father and not the villain you see before you. I only wish that I got to live long enough to see you realise your dream and become a father yourself."

"That wish is already true. I have a daughter and I am now a hero may god have mercy on your soul."

"This is my last gift to you...My son" Hisashi says as he activates his quirk for the last time taking the picture from his pocket and moving the tendril forwards towards the blast door of his cell and underneath it. The tendril drops the photo to Izuku and then imbeds itself in his arm activating a quirk within Izuku before the security system activates.

In unison the four sentry guns in the corners turn to face Hisashi in his chair and shoot a syringe into the faceless man. Said syringe is filled with a powerful neurotoxin stopping all brain functions and heart functions within minutes of the syringe piercing his skin. The heroes sprint down the hall to the room having heard the quirk activation alarm and see Izuku holding a photograph in his hands and the machines on All for One start to slow. Soon the EKG machine displaying his vitals slows to a stop and a single tone resonates through the air, signifying the death of Hisashi Midoriya.

"What happened why did the security system activate?" All Might asks as Izuku stares at the picture in his hands.

"He gave me this, he used his quirk to give me the picture of us as a family that was missing from our family album for all this time. He said that within hours of our conversation a brain tumor would have killed him anyways so he had the system kill him painlessly after giving me the picture." Izuku replies as a technician walks over to the computer and brings up the security feed and audio of what Hisashi said about his death.

"With him gone the league no longer has anyone who can create Noumu. We need to take care of Shigaraki next without the leader the rest will fall." Nedzu states as Izuku stares at his father's limp body in the chair as two doctors come into the room to collect him for an autopsy.

"When they find out that All for One is dead they will want revenge, perhaps even try to kidnap Deku here. Listen to this, Deku is now All for One." Tsukauchi says playing the recording of All for One saying that Izuku possesses his father's power.

"I am not All for One, I may have the power but I am not him and my father does not dictate who I am. I am Deku." Izuku replies before exiting the room.

"Well thanks to the information that Toga Himiko has provided we can begin a plan to counteract their attempt to kidnap Eri Midoriya. But since she deserted them and changed to our side what should we do with her?" Aizawa asks the remaining people in the room.

"Bring her to UA after a full Psychiatric re-evaluation we will train her to be a hero so she can bring her former allies to justice." Catalyst replies shocking the pros in the room as to his idea. "She risked her life to bring us this information so she can be redeemed and we can use her against the league."

"That actually is a good idea but the psychiatric care will take some time, according to her brain data she is fighting a with a split personality due to schizophrenia so it's best we get that handled first before bringing her to UA. I will oversee this with Horimoshi that she makes a full recovery and that she may be inducted into UA's hero course." Nedzu says as the heroes leave the cerberus and head back to UA.

With the death of this ancient evil, one may have to ask, who or what will arise to replace him? With the reveal of a second All for One on the path to justice and becoming the next symbol of peace, a new evil may arise within the ruins of the League of Villains under the former tutelage of Hisashi Midoriya. Now the last of the Shimura bloodline are bound by fate to fight one another family has become enemy once more. The two remaining Shimuras will fight the other until one remains.

The Head of the League of Villains vs the Successor of All for One and One for All.