Arkham

Deku went into his new office at his new base in an abandon amusement park, he opened the door to reveal boxes that nearly filled the entire room. Izuku giggling, "Let's see what research Dad left for me."

Sir Nighteye's Agency

The police and heroes were reviewing the clip of Doomsday, Mirio looked at it, "It took my strongest punch and it is powerful."

Sir glared, "How did he create you?"

The police chief said, "It ate an entire nuke and lives, I didn't know there was a quirk that allows that."

Bubble Girl handed over a document, "There is one quirk we know that allows this, Soramitsu Tabe, a member of the Shie Hassaikai. His quirk, Food, allows him to eat and digest anything."

A police detective in shock, "That thing is made of members of the Shie Hassaikai!"

Mirio said, "Deku told me that Doomsday is made of villains, heroes, and civilians… one of it's most valued quirks is one called Evolution."

Crust said, "That was one of my former side kick's quirk."

The chief asked, "What does the quirk do?"

Crust said, "Evolution allows the user to evolve themselves to fit any situation for the user's survival. His problem would be any evolution, he has to learn how to deal with. Like if he grew tail, he has to learn how to use and deal with it."

Sir looked at Doomsday regenerating after the jets killed him the first time, "Multiple regeneration quirks and Evolution keeping it alive…"

Aizawa came in and went to Sir, "Yagi just finished his mental evaluation test."

Sir asked, "How did he do?"

Aizawa sighed, "It's bad, he has to be sent to a specialist to fix him."

Sir frowned, "Deku and All for One won that fight no matter how you look at it."

Mirio went over to Aizawa, "Where is he being sent to?"

Aizawa looked at him, "Not Arkham."

Izuku

Izuku started laughing as he put on his suit, "I'm going to Arkham!"

Sato asked, "Why Arkham?"

Izuku smiling, "There are a few quirks I need to steal and a few people to recruit."

Toga skipped to him, "You need help?"

Izuku giggling, "Of course Harley! Let's get moving! Scarecrow, Bane, Two Face, and Man Bat; you are coming. The rest of you will take care of Eri and the prisoners."

Izuku, Toga, Shoto, Sato, Scarecrow, and Man Bat were walking to the planning room. Izuku smiling, "My plan is for me to turn myself in."

Shoto raised his eyebrow on his non burnt side, "How do you know, they wouldn't send you to Tartarus."

Sato said, "Tartarus is for villains while Arkham is for the insane people and insane villains which Deku will go to Arkham."

Izuku smiling, "No need for flattery, but Harley will get security to get you all in."

They all nodded, Scarecrow asked, "Are you going to walk up to the police station and surrender?"

Izuku giggling, "If I do that, they will know I'm planning something, I need it to look real. I'm going for a walk…"

The Next Day

Mirio was out on patrol at his normal station until he heard gunshots. He ran to the origin to find Deku with a minigun shooting up some high school kids. Izuku laughing, "Take some of this."

Mirio ran at Izuku to punch him with 20% of One for All, Izuku went flying a few feet. Izuku got up, "Lemillion! You found me, you see I was on out for a walk…"

Mirio grabbed Izuku by the throat to throw him but Izuku pulled out a knife to stab Mirio's arm. Izuku landed on his feet and Mirio looked at the knife, "You got me once, I will take you down."

Izuku giggling, "Come on, hit me!"

Mirio punched his face, Izuku smiling, "Hit me!"

Mirio punched him again, Izuku shouted, "HIT ME!"

Mirio was about to punch him again, "No…"

Izuku looked at him, "What?"

Mirio glared at him, "I will not make the same mistake as All Might."

Izuku laughing, "Sure, you won't!"

Mirio looked at his eyes, "I don't know what happened to you. You and I are similar in our pasts, I can help."

Mirio put Izuku down, "You don't have to be this thing that you think you have to be. I know society has created you, that is the one thing I hate about it… but together we can change it."

Mirio reached his hand out, but Izuku smirked, "It's far too late for me…"

Mirio frowned but then Izuku started chuckling, "Sorry, this reminds me of a joke."

Izuku smiling at Mirio, "You see there were two guys in a mad house, and they didn't like it at all. Which one night they decided to escape, they came across this narrow gap stretching across town. Stretching to freedom, the first guy jumps across with no problem… but the second guy, no way he was afraid of falling. The first guy said, 'Hey, I got this flashlight. I can shine it across the gap, and you can walk across.' The second guy said, 'Who do you think I am, Crazy?! You're just going to turn it off when I'm halfway across.'"

Izuku then started laughing which Mirio looked at him then he smirked, Mirio then started laughing with him. Sir arrived to see the two laughing which then Mirio grabbed Izuku's shoulders, "Yeah, I'm still arresting you."

Which then Mirio put some handcuffs on Izuku which Sir sighed in relief that Izuku didn't make Mirio mentality damaged like Yagi. A week later, Izuku was sentenced to go to Arkham because he is underaged to sentence him with the death penalty.

Arkham Insane Asylum

Mirio, Hawks, and Aizawa were now walking with security guards who were escorting Izuku into Arkham. Izuku was strapped on to a dolly looking around, "You know taking a madman to an insane Asylum is like taking a child to his home. The place truly speaks to me… it like a home I never thought it would be this comfy looking."

Aizawa frowned, "Good, we expect you to not escape."

Then a guy in a nurse gown came up to them, "I just got to check the condition of the prisoner."

A guard grunted, "Just make it quick."

The man said, "Just following procedure."

The man starts looking at Izuku, "Patient seems to be in satisfactory condition. The face part can be taken care of with our doctors but no other injuries. That sounds…"

Izuku jumped forward, "Boo!"

The man jumped back in fear, the guards had their guns up, and the heroes were ready to beat him up. Izuku started laughing, "Need to check my temperature? I'd be happy to drop my pants."

The man grunting, "He's all yours, get him out of my sight."

Then they got to the main room, Toga was looking at the cameras as she was in the security room with a few dead bodies with Shoto, Sato, Scarecrow, and Man Bat. Toga then pushed a button to release all the prisoners in the Asylum. Shoto smirked while flipping his coin, "Now for the real fun."

Mirio, Aizawa, and Hawks with the guard looked around to see the inmates were now running around charging at them. Izuku then broke free from his dolly to jump to the inmates, "Welcome to the Madhouse, Lemillion! I'm going to have so much fun!"

Izuku started laughing as he run in the huge crowd of inmates. Mirio started using Full Crowling with his Premutation, Aizawa was fighting the crowd with his scarf which he was good, Hawks was going to fight the hoard until Man Bat came in tackling Hawks into the sky. Mirio saw Man Bat to shout to Aizawa, "Izuku planned this from the beginning! It was a trap!"

Aizawa grunting while throwing an inmate at a group of inmates, "What gave that away? Was it Man Bat?"

Hawks was in the air using his feathers as swords while Man Bat was using the dark as his advantage. Hawks flew at Man Bat with great speed, but Man Bat grabbed him to slam him to the wall. Man Bat chuckling, "What's wrong little birdy? The dark is not your friend tonight."

Man Bat threw him to at a guard tower which Hawks grunting as he got up, "Ingenuim was right when he said Man Bat hits like a truck."

Hawks looked to find the spotlight which he pointed it at Man Bat to try to blind him, but Man Bat flew to throw him off the tower. Hawks thought to himself, 'Light sources don't work… he's blind because of his quirk. He has really good hearing meaning loud high pitch sound are the key to beating him.'

But before he could do anything, he heard growling, he turned to find a huge reptile man about three times Endeavor's size. Izuku was on the beast's shoulder, "Man Bat meet your new friend Killer Croc! Killer Croc meet your new friend Man Bat, now that you two have met… kill Hawks."

Killer Croc smirked as he grabbed Hawks to throw him at Man Bat, Man Bat then started punching Hawks' face and gut. Man Bat then grabbed Hawks' shoulders, "Going down."

Man Bat then flew straight down at Killer Croc, Killer Croc opened his mouth wide and Man Bat let go of Hawks. Hawks was then eaten by Killer Croc, Killer Croc chuckled, "Tastes like chicken."

Man Bat landed in front of Killer Croc, "A fellow cannibal, shall we?"

Killer Croc smiling, "Yes, let's find more prey to eat and leave."

Izuku skipping along, "I'm going to get more friends, make sure you two don't lose to Lemillion and Eraserhead."

The two nodded then ran off to eat a few people, Izuku then came across a cell. Izuku looked at the number on the cell then he busted it down. A woman with hair white as snow was sitting on her bed looking at Izuku. Izuku leaned to a radio, "Two-Face… you want to see your mother, Killer Frost."

Shoto then skated his way to Izuku's location, Izuku sat in a chair next to Miss Todoroki, "You must be Rei Todoroki, tell me… do you know that your husband is dead?"

Rei looked at him, "I know he is dead, he was killed by Two-Face. Is Two-Face here?"

Izuku smiling, "Yes he is and he is on his way, he is very excited to see you and take you out of here."

Rei in shock, "Why is he excited to me?"

Izuku asked, "Do you not know who Two-Face is?"

Rei shook her head in as a 'no'. Shoto then appeared in the room which Izuku left, "Your mother seems to be in good health Two-Face."

Shoto smiling, "Hello… mom."

Rei saw Shoto's new appearance, she started crying, "I'm sorry."

Shoto went up to hug her, "It's okay, I forgive you. All of this is his fault, I'm here to get you out."

Rei hugging Shoto which Shoto picked her up to take her out of the asylum. Izuku then came across some inmates in specialized cells which he smiled, "Time to take some quirks."

Katsuki

Katsuki, Knuckleduster, Crawler, and Pop Step got to Arkham to help keep the inmates in Arkham. Katsuki looked to see Mirio and Aizawa were outnumbered by the inmates, Katsuki pulled out one of his pistols to kill an inmate about to attack Aizawa from behind. Aizawa and Mirio turned, Mirio asked, "Who are these guys?"

Aizawa smirked, "Backup… vigilante backup."

The vigilantes jumped down to beat up the horde of inmates, Aizawa looked at the vigilantes, "Took you all long enough to get here."

Knuckleduster smirked, "Sorry, traffic is a nightmare."

Pop Step asked, "What is the situation?"

Mirio sighed, "We were taking Deku here, but it what was a part of his plan. He has control of the security here, all the Arkham inmates are out of their cells."

Crawler shrugged, "So we take back the control over the security and put the inmates away as well."

Katsuki groaned, "I expected a challenge."

Toga on the speaker, "Attention all staff, Puddin said whoever kills Redhood, the vigilantes, Eraserhead, and Lemillion gets to have a fun night with a few heroines that we have captured at home base. The heroines include Ryukyo, Mirko, newly captured Cow Lady, the newly captured Ms. Joke…"

Eraserhead's eyebrow twitched and a vein popped up on his forehead, Toga continued, "… and Uwabami. Thank you for listening to these important messages!"

Toga hung up, Aizawa punched the wall, "How the hell did they captured Ms. Joke and more heroes."

Izuku appeared laughing, "Easy!"

They turned to look at him with anther man with black hair and a katana. Izuku continued, "You see, I have a group of friends that can do a lot of things for me. But allow me to introduce to you all my new friend."

The man smirked, "It's been a while Shota Aizawa."

Aizawa frowned, "Ra's al Ghul."