[Third Person's PoV]
The Next Day…
Tony was seen in his lab, arranging everything in order for his visitor who would be arriving any minute now. The cases holding his suits were all obscured, making it impossible to see what was inside them.
"Sir, your guest has arrived. They are waiting for you by the front door," Friday informed Tony.
"All right, I'll be right there," Tony said as he made his way towards the main entrance of his mansion.
When he opened the door, there stood a buff All Might in his iconic stance. "I Am Here! And I brought a guest!"
Perched on All Might's shoulders was a small white bear-like creature, which Tony immediately recognized as Principal Nezu, hitching a ride.
"Hello," Nezu greeted before jumping down and extending his hand... paw?
Tony shook it with a nod as he greeted him back.
"I have to say I'm a big fan of your work. At such a young age, you have more accomplishments under your belt than any starting Hero," Nezu said, smiling.
"Let's not wait any longer, shall we? Come, follow me. I have everything ready," Tony said as he led them toward the lab.
"I'll give you guys a tour after we're done with the surgery," Tony added as he gestured for them to follow him.
Confused, they watched as Tony sat down at the piano. "Well? Get closer, you guys are out of range."
They moved closer, and Tony began to play the Avengers theme. Nezu couldn't help but laugh, while letting out little squeaks between chuckles.
"This wasn't something I was expecting," Nezu commented.
They were shocked to see Tony's futuristic lab with holograms floating around. Melissa appeared wearing a nurse uniform, complete with a mask and gloves, ready to assist.
"Come and follow me," Tony instructed as he walked through his lab, passing by a door before turning a corner and entering another room.
They arrived at what looked like a medical bay, with a large bed and screen devices on the side.
Inside the room, there was another door labeled "Disinfectant Room," which Tony led Principal Nezu into. Melissa followed, with All Might looking around nervously.
After a few minutes, a slimmed-down All Might emerged wearing patient garb, while Nezu and Tony came out dressed in blue surgeon outfits with caps, masks, and gloves. Surprisingly, another figure emerged with them—Baymax, round and soft as a marshmallow, also dressed in a surgical outfit.
"I don't quite understand... why am I dressed up as well?" Nezu asked awkwardly, looking down at himself.
"In case you need to touch something," Melissa informed him.
"I was looking for a more thorough explanation," Nezu said with a puzzled expression.
"Well, you'll be present, right? I assumed you'd want to be here," Tony replied.
"I thought I'd be observing behind a glass window that shows inside the room," Nezu added.
Hearing that, both Tony and Melissa froze momentarily. Seeing their reaction, Nezu chuckled. "Did you guys forget that was an option?"
Tony cleared his throat. "No, no more questions, please."
All Might looked at Nezu with concern before Tony guided him to the large bed. On one of the screens, a complete image of All Might's insides was displayed.
"Seriously, how the hell are you still alive?" Tony muttered as he examined the image in front of him.
"Even I'm beginning to question that myself, Young Stark," All Might replied, studying the images showing his severely damaged stomach, liver, and the toxic residue.
"As I mentioned before, I've already secretly examined you. The poison is a highly advanced compound—a combination of biotoxins and some form of dark energy residue. Whoever designed this knew exactly how to attack both your physical and metaphysical aspects."
"Is there a cure for it?" Nezu asked.
"Nope," Tony said, popping the 'p'. "Whoever made this ensured there was no cure whatsoever."
"Huh? But didn't you say you have a way to help him?" Nezu said, narrowing his eyes at Tony.
"And I do. We won't be curing it, but we will be removing it."
"What are you planning?" Nezu asked curiously.
"Friday, display a holographic image of All Might's body, please."
As the image appeared, Tony grabbed the damaged part of All Might, removed it, and threw it in the trash. Then, he retrieved a replacement part seemingly out of nowhere and inserted it into the empty space.
"We're basically remaking the damaged parts of his body," Tony explained.
"He isn't a machine where you can just replace whatever part is broken," Nezu said with displeasure.
Tony rolled his eyes. "Relax, he'll be in cryogenic sleep where his body will be completely still. We'll remove all the damaged parts and replace them with synthesized organs—stomach, liver, muscle fiber, veins, and skin."
Tony continued explaining how they would use All Might's DNA from each part as a basis for a perfect match.
After everything was explained, Nezu looked at Tony and said, "If you wanted to, you could create a functional human body, couldn't you?"
"I could, but it would be just a husk. I don't have the power to manipulate souls. And honestly, I don't want to create one."
"Why? You could have an army if you wanted," Nezu remarked.
"Because I was raised right? What kind of stupid question is that? I thought you were supposed to be smart," Tony retorted.
Nezu chuckled. "That's the first time I've heard such an answer. Alright, I'll choose to trust you... for now."
"Yes, thanks. Your trust means so much to me," Tony said sarcastically, then turned towards All Might. "You ready, old man?"
"Ready as I'll ever be, I suppose," All Might muttered.
"Great answer," Tony nodded. "Baymax, turn off his lights."
Baymax walked towards the light switch on the wall and flicked it off.
"I mean, put him under anesthesia!" Tony shouted.
Tony then heard Baymax's footsteps, causing him to sigh. "Baymax, turn the lights back on and then put him under anesthesia."
Baymax's footsteps stopped, and it turned around to switch the lights back on before returning to All Might.
"Is it too late to change my mind?" All Might asked.
"Yes," Tony said as a needle extended from Baymax's thumb and injected All Might.
A few seconds later, All Might started going under.
"You did that on purpose, didn't you?" Nezu said with a straight face.
"Guess," Tony replied shortly.
"Alright, Friday, activate Cryogenic Sleep," Tony instructed.
Soon, glass began to appear from the sides, covering the top of the bed to form a capsule.
"Alright, Baymax, you know what to do," Tony instructed a few minutes later as All Might began to turn pale due to the cold.
And just like that, Tony and Baymax began their work. They placed their hands into a compartment of the capsule, their hands showing inside, touching All Might. Little by little, they began to remove all of All Might's damaged parts. Due to his cryogenic state, no blood escaped his body as it remained frozen.
Tony then collected the DNA of the damaged parts and placed it inside a vial before inserting it into a machine stationed on one of the desks. The machine functioned like a 3D printer, using the energy from the Arc Reactor to print living tissues.
Little by little, they began the reconstruction of the parts they had removed, making All Might as good as new. Nezu watched everything with extreme fascination. Melissa stood by with a towel, wiping Tony's sweat.
After it was all over, Tony asked, "Friday, give me a diagnostic of his vitals."
"Apart from his slow heartbeat due to his cryo sleep, all of All Might's vitals are within normal parameters. The newly printed tissues have integrated successfully with his existing cells. There are no signs of the poison remaining in his system."
"How many hours did that take?" Tony inquired.
"12 hours, sir."
Tony nodded before saying, "You can begin to take him out of cryo sleep. Anything else to report?"
"Due to constantly being poisoned and having to survive for so long, his vitality is low. This means he can only transform into All Might for 15 hours; afterward, he will need to take a break. Any more, and he will begin to harm his body," Friday informed them.
Tony nodded and turned towards Nezu, "Did you hear that? Make sure he doesn't push himself more than necessary."
Nezu nodded seriously and bowed his head towards Tony. "You have saved Japan's greatest treasure. Others may not know, but I do, and for that, you will have my gratitude."
"Dude, chill. I'm just doing what I'm supposed to," Tony waved him off.
Confused, Nezu looked at him, prompting Tony to elaborate, "I'm going to be a hero in the future. I'm just doing what heroes do—saving lives."
Melissa, who had been watching everything, smiled, her gaze turning soft.
Tony's lack of quirk wasn't a big secret, so almost everyone knew about it. Nezu hearing this from him caused his eyes to widen slightly before he smiled. He offered Tony his hand, "Then I hope to see you at U.A. in the coming years."
Tony shook his hand, scoffing, "I expect the red carpet."
Nezu chuckled at that, and a few minutes later, All Might awakened. He was back and as strong as ever.
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