The Final Solution

Bakugo woke up in the hospital on the bed in pain, Izuuki and the vigilantes got up, "What happened?!"

Bakugo groaned in pain, "Some… girl…"

Every time he tried to speak it felt like coughing out blood which Izuuki leaned down to him, "Ok blink once for yes and twice for no. Did this girl have white hair and red eyes?"

Bakugo blinked once which Izuuki walked outside the room to shout, "FUCK!"

Knuckleduster came out of the room to talk with him, "What the hell is it?"

Izuuki explained, "Eri… the daughter of Deku. From my time period, no one knows where she came from or when."

The old man asked, "Who is she?"

The boy turned to him, "If Deku is the Devil, then she is his right hand. Her quirk is stronger than anyone has ever seen. But we don't know what it is or how it works. If she is new, then this is when it all started."

Crawler came out, "What do we do?"

Izuuki started walking, "We have to kill her… before she finds us."

Crawler stood in front of him, "Wait a minute, we don't kill…"

Izuuki pushed him out of the way, "You don't kill but I will it I have to."

Knuckleduster grabbed his shoulder, "Tell us why you came to Bakugo for help in the first place."

Izuuki looked around to see nobody, "Katsuki is my older brother…"

Pop Step came out of the room, "But he doesn't have a brother or mentioned one."

Izuuki replied, "That's because I wasn't born yet, I'm the son of Mitsuki Bakugo… and that monster… Deku."

The three looked at him in shock which he continued, "… I came to the past to weaken that monster so when I return to my timeline, I could kill him…"

He pulled out a syringe from his pocket, "This syringe is filled with a nanomachines that can prevent him regenerating and resurrecting. Along with one of my quirks that can literally punch the quirks out of him…"

Then the four heard clapping in the distance and a man giggling. Then the voice replied, "Well well, I never would have expected an offspring of mine to kill me in such a way."

The four stood in fear as they turned to the source at the end of the hall. Izuku walked forward, "Yes… I can see it… you wield One for All… an explosion quirk… but impressively my quirk."

Izuuki stood in position, "You definitely look weaker old man."

Izuku covered his heart, "Well that wasn't very nice."

Izuku continued walking, growing claws from his hands and wings, "I came to see what happened to poor Kacchan. I heard his girlfriend and her parents were killed in that, which is just heartbreaking news."

Izuuki charged up a punch, "Why? You were going to rape her too."

Izuku appeared in front of him, "Yes I was…"

He grabbed Izuuki's neck and threw him through the floor causing Izuuki to fall in the hole to go to the floor below them. Izuku continued walking, "What a disappointment."

Crawler and Pop Step went on the attack which Izuku kicked Crawler out the window. While Pop Step had it easy and was thrown back breaking the door to Bakugo's hospital room. Knuckleduster charged at him punching his face and gut then uppercut him. Izuku felt some blood leaving his jaw, "All that… for a drop of blood?"

Knuckleduster smirked, "It made you distracted right?"

Izuku looked at him in confusion as Izuuki was behind him, "1,000,000% SMASH!"

Izuuki punched him as hard as he could which Izuku didn't have his shock absorption quirks on, which resulted in him flying out of the hospital.

Knuckleduster seeing the kid broke his arm and about to collapsed grabbed him, "You good?"

Izuuki nodded, "We need to get Kacchan out of here."

The Crawler climbed through the window, "Jesus… I thought I died for a moment there."

Izuuki shouted, "Dude let's get him out of here, before…."

Izuku crashed into the building to punch Knuckleduster's face then squeezed Izuuki's broken arm, "Well that was fun."

Izuuki could feel his arm turning to dust which Izuku asked, "What are you going to do now?"

Izuuki looked in his eyes, "I must defeat you."

He stabbed Izuku's eye with the syringe and inject the nanomachines in him, "Try healing now…"

Izuku started laughing as he pulled the syringe out of his eye and the nanomachines oozed out of his eye, "You thought a few machines were going to do the trick? Sorry, but you were wrong."

Izuuki headbutted him then use his other hand to grab Izuku's neck, "I guess I have to try the other alternative."

Izuuki started trying to steal Izuku's quirk but he met strong resistance as Izuku started stealing them back. Izuku laughing, "So much rebelling, I like the strong spirit but everything else is so flawed."

Izuku took his quirks back and slammed Izuuki's head to the wall. Izuuki wasn't giving up as he punched him with his strong arm. Izuuki smirked, "I guess punching you really hard in the face could help."

Izuuki swung his left arm to punch Izuku's face with everything it had blew Izuku to pieces. Izuuki let out a sigh leaving Crawler, Knuckleduster, and Pop Step in almost celebration. Izuuki fell to one knee, "He isn't dead… I just weakened him for now."

Crawler grabbed Bakugo as they fled the scene except Pop Step who found a mysterious heart lying around. A beating human heart on the floor which she stomped on it, when she stepped on it, tentacles came out to grabbed her and trap her. Izuku started regenerating fast, "Well I see that somethings don't change, I give my heart to the world… and someone steps on it."

She tried struggling to escape which Izuku covered her mouth, "So… who hurt my Kacchan without my permission?"

She bit his hand which he started laughing, "OH! We got a fighter!"

He slapped her face, "Well I'll take care of that once I get the other thing done."

He then started walking with the captured Pop Step to the room filled with dead bodies which Izuku looked at Uraraka's body, "Well the head is missing… but I can fix this."

He touched the body and the head grew back and body returned to perfect condition which left the vigilante in shock. Uraraka opened her eyes, "K… Katsuki?"

Izuku looked around for a moment, "Sorry Kacchan isn't here."

Uraraka's face showed horror as she knew the voice which Izuku grabbed her by the throat and started dragging her off the table, "You two would be fine additions to my collection."

He then stepped in a portal back to his home with more trophies that he has collected.

The Base

As Izuku exited the portal he shouted, "WELCOME TO THE MADHOUSE!"

He turned to them to calmly speak, "Also known as my home, I'll show you the tour around."

He first showed them the lab, "This is where Scarecrow and Brainiac work at if you two get bad. You will have to make multiple trips here."

They heard screaming in there as they saw a man getting his arm sawed off by Scarecrow. Izuku continued the tour to the café, "This is where you will do most of your employment."

They saw the former heroines and girls from UA dressed in maid outfit serving food to the insane people… so were being groped and some were being outright raped there. Izuku dragged them along to a hallway full of jail cells until he found an empty one, "That's your cell."

He threw Pop Step in that cell and locked her up then dragged Uraraka into his office, "Well this is the grand finale, my office."

He slammed her on the desk and handcuffed her, "Well now, I can't allow you to use your quirk on me."

He ripped her gown off, "Well we are put that ass to work."

He then slapped her ass as hard as he can and got to work…

Bakugo

Bakugo was resting in an abandon apartment which Mirio was there, "Katsuki…"

Bakugo groan a bit then Knuckleduster sighed in relief as Bakugo was still alive and kicking. Bakugo spoke, "I heard your plan failed."

Izuuki messing with a strange device, "I KNOW IT DID!"

After he shouted then he turned to him and calmly replied, "Well… at least I have a backup plan."

Mirio asked, "What is this plan?"

Izuuki replied, "When me and a few rebels raided his hideout, we discovered a device that he had in possession."

He revealed the strange device and turned it on, "Apparently, he planned to travel the multiverse to conquer the it. This device called an… Izubook…"

Bakugo chuckled a bit, "Stupid name…"

Izuuki chuckled a bit too, "Apparently there are multiple versions of Dad… heroes, vigilantes, villains, and… other weird ones."

Knuckleduster raised an eyebrow, "Fight fire with fire?"

Izuuki nodded, "It's apart of Plan Z, I have seen plans A-Y fail… so this is the final plan."

Bakugo added, "The final solution…"

The Crawler looked at the device, "We have to choose the right one, so let's get rid of the villain options."

Mirio looked at the device as well and saw a 'Request' button, "What does that do?"

Izuuki struggled as he pushed the button which a text box opened up, 'Please describe the nature of the request.'

Izuuki shouted, "WHAT KIND OF BULLSHIT IS THIS?!"

Bakugo grabbed the device to put in help and that Deku was unkillable then sent it. Izuuki looked at the message, "You really think that putting in the detail that he is unkillable will make…."

A message popped up reading, 'Bet…'

Everyone in the room looked at the message in shock which Bakugo explained, "Sometimes… everyone needs a challenge. Villain would want to see if another villain is truly better than them, a hero would want to use everything they have to stop an unbeatable villain."

He gave a soft smile, "But it's human nature to see that if an entire world is suffering from an unspeakable evil… the good and the lesser evil will join forces. I helped created this evil… and now I will help end this evil."

Then a portal opened which a green hair man the same age as Bakugo with blue jeans, leather jacket, and a baseball bat appeared. He smiled at them to reply, "Hello, I'm the Anarchist… now where is this unbeatable, unspeakable evil?"