Izuku put All for One in a little cage, and picked it up by the handle on top. There was a rumble from the Nomu factory area, which Izuku went to investigate.

  Mount Lady, Best Jeanist and Tiger were there, alongside several other pro heroes.

  "Oh look, the pro heroes. Sure is lucky I dealt with you before they got here huh?" Izuku asked.

  He shook the cage, earning a torrent of squeals that were probably better off untranslated.

  Izuku was noticed by Best Jeanist.

  "Midoriya? Are you alright?" The stylish hero asked, approaching carefully.

  Izuku nodded.

  "I'm fine. The League of Villain's leader is dead. The room seven doors down to the left, you'll find his body. The guinea pig stays with me. Nezu will want to talk to it." He said.

  The hero just nodded, putting his finger to his ear.

  "We have Midoriya. Apparently he dealt with the leader himself." There was a pause. "Of course."

  Best Jeanist turned back to Izuku.

  "What is Nezu? We need to know if you are who you say you are." He asked.

  Izuku chuckled.

  "He is part rat, part bear, part dog and part mouse. A chimera of sorts."

  Best Jeanist nodded as he received confirmation from the comms.

  "Follow me Midoriya. Nezu is waiting for you at the second site." He said.

____________

  Izuku stepped out of the Jeanistmobile, approaching Nezu, who was amongst several police officers and heroes. Shigaraki and the rest of the league were being bundled into an armoured truck, to be taken away to Tartarus prison.

  Nezu hopped off the stool he was stood on and approached his friend.

  "Izuku! I am glad you are okay. What-"

  He was interrupted by several squeaks from the cage Izuku was holding. The greenette just put a finger to his lips, which Nezu understood.

  That didn't stop the genii from staring at the guinea pig, cackling maniacally.

  "I will ask how you were able to do this later. For now.. well he's not really a threat anymore is he?" Nezu said.

  Izuku chuckled.

  "Nope. I won't kill him, that's too easy." Izuku leered at the small caged animal. "I'll let him live like this for a while. I want to mess with him."

  All Might emerged from the building they had raided to capture the league.

"Young Midoriya! I am glad you are alright! I apologise, but there is another matter to deal with. Nezu, has there been any word of.. him?" The hero asked.

  Izuku coughed, while Nezu burst into another fit of evil laughter.

  "Indeed. It would appear Izuku was able to defeat him." He said. "Best Jeanist retrieved the body just moments ago!"

  All Might hesitated for a second.

  "I-im sorry? I don't believe I heard you correctly."

  Nezu chuckled.

  "Oh you did All Might. All for One is dead."

  All Might stared at Izuku.

  "H-How??" He asked.

  Izuku smiled.

  "Let me explain..."

_______________

  Nezu put his phone away just as Izuku had finished explaining. They were in the car, headed to the hospital to get Izuku checked out.

  "So he used a mind control quirk that didn't work how he expected, and you were able to trap him in your mind and sever the connection to his body.. completely killing him." Nezu summarised.

  Izuku nodded.

  "Yup. I took this little guy-" Izuku shook the cage, earning a stream of squeaks that made Nezu wince. "-so that Nezu or Koda could get information out of him."

  All Might sighed, slumping in his seat.

  "So he really is dead.. for good this time." He muttered.

  Izuku and Nezu exchanged a glance.

  The car rolled to a stop, and the three of them got out and walked up to the hospital.

  "Here, can you take him for me?" Izuku asked, holding the cage out to Nezu.

  The creature nodded, taking the small cage and watching Izuku get looked over by a nurse.

  "So.. you're stuck like this now." He said to the smaller animal.

  "It's only a matter of time." All for One squeaked. "I will escape that brat's clutches and get my body back, as well as my quirks!"

  Nezu chuckled.

  "Actually.. we had Endeavour cremate your corpse and Cementoss will be burying your ashes somewhere only he will ever know. Even then, you think you could escape Izuku? Where would you go once getting out of his apartment? How would you avoid traffic, or bigger animals like hungry stray dogs? How would you eat? Face it All for One, you're stuck like this until you die in a few more years. Guinea pigs don't live for nearly as long as humans." The rat said.

  All for One growled.

  "Then I will slit his throat as he sleeps!"

  Nezu smiled dangerously.

  "Then I will hunt you down and torture you until the end of your miserable days. I was an experiment, I know exactly how much pain an animal can take All for One. Don't test me."

  The ex-supervillain gulped, remaining silent.

  Izuku returned and took the cage back with a smile.

  "So, what did you two talk about?" He asked.

  "Slitting throats and promises of agonising torture. How did your checkup go?" Nezu asked.

  Izuku laughed.

  "I'm in perfect condition. So, when are-"

  The doors were thrown open by a short green haired woman and a tiny white haired girl.

  "Izuku!" Inko said, crushing her son to death in a bear hug.

  "Hey mum.." Izuku said.

  "I'm so glad you're okay! Did the villains hurt you? Are you hurt? Can you come home?" She asked worriedly.

  Izuku smiled.

  "I'm completely fine. No injuries or issues to speak of." He reassured her.

  Inko sighed, but her expression remained tense.

  "If I ever meet the villain that wanted you taken.." she muttered, her fists clenched.

  All for One gulped quietly. Nezu sent him a pointed smile.

  Eri latched onto Izuku tightly, burying her face into his side. The greenette stroked the girl's hair affectionately.

  "Hey Eri. It's okay, I'm not hurt. I'm sorry for leaving you, are you okay?" He asked softly.

  Eri let go of Izuku, now beaming up at her father. Izuku smiled in return.

  "Hey Eri, do you want to meet someone?" Izuku asked.

  The girl nodded hesitantly.

  Izuku held out the cage that contained All for One.

  "This is Toshi." He smiled.

  All for One squealed in rage.

  "Don't you dare give me that name! If you name me after that bumbling oaf I swear I will-!"

  Eri peered into the cage.

  "Hello there Toshi!" She said brightly.

  "Dear god I have to live with these people." All for One muttered, squinting as he looked the sun in the face.