Chapter Text
Adoption Centre
Inko looked at the name on the adoption papers, smiling in satisfaction as she read it over. She looked at the black-haired boy crying behind the glass and failed to hold back her own tears.
"I trust you've made a decision, Miss Midoriya?" The nurse asked.
Inko sniffled. "Yes!" She pointed to the boy. "Him, he's perfect". She handed back the papers.
"Excellent choice. I'm sure he'll have a wonderful quirk". The nurse looked over the papers. "I see you've changed his name."
"Yes. I've always wanted a son named Izuku".
"That sounds beautiful".
Inko returned home with Izuku in her arms. "I'm home, with a surprise!"
"So do I," Hisashi chuckled, walking into view with a young boy following him. "Meet Tomura."
Tomura said nothing, looking at Inko shyly. He was trying to hide his hands, tugging on the three-fingered gloves he was wearing to make sure they were secure.
Inko giggled. "Hello, Tomura, meet your brother, Izuku".
Hisashi grinned, "I see we were both successful. Shall I break out the good wine?"
"I'd say this moment is special enough for it."
Four years later.
Izuku replayed the video of All Might's debut. "Hahahahahaha! Fear not, citizens! Hope has arrived!" He copied. "Because I am here!" Izuku laughed.
"Izuku, it's time for your quirk assessment," Inko said.
"Coming, mother!" Izuku ran to the car, happy that he can stop watching the video for now.
Inko strapped Izuku into his seat, got in herself, and then started driving. "If you don't like the video, why do you watch it so much?"
"Because everyone can quote it word for word," Izuku explained. "It would be weird if I couldn't".
"People do worship that man," Inko sighed before returning her focus to the road. She eventually pulled up at a hospital and lead Izuku inside.
The first thing Kyudai did was take an x-ray of Izuku's foot. He examined the image before grinning at the two Midoriyas. "Well, Miss Midoriya, it seems your son will develop a quirk".
"That's wonderful news, doctor!" Inko smiled.
"I know he has a bright future ahead of him".
"Oh, absolutely. The brightest".
The next day.
Izuku walked up to Katsuki. "Kacchan, I have a quirk!"
"Alright, then let's see this weak quirk, Deku," Katsuki said.
"Uh... I don't know what it is".
Katsuki raised an eyebrow. "Then how do you know you have one, Deku?"
"Because the doctor man said I have one".
"Whatever, it better come in soon so you can be my sidekick".
Izuku rolled his eyes. "Well, if my quirk is stronger, will you be my sidekick?"
"We both know my quirk is the strongest, Deku. I'm going to be stronger than All Might!"
Izuku cringed slightly. "We'll see".
That night.
Izuku bowed before Hisashi. "Father, my quirk hasn't manifested yet".
Tomura perked his head up from his homework. "Maybe it would be better to not have a quirk". He took off a glove and touched a pencil with all five fingers. The pencil turned to dust. "See?"
Hisashi looked to Izuku. "Izuku, there are many ways to activate a quirk. You would do well testing out as many methods of quirk activation as you can. I can already see that you have a different activation method to both of your biological parents. Perhaps you should ask your classmates how they activate their quirks?"
"Yes, father".
The next day.
Katsuki punched another child, using his quirk to make his punch more powerful.
"A hero should not attack people, Kacchan," Izuku shook his head.
"Heroes fight villains, Deku!" Katsuki countered. "That's what I'm doing!"
"How is he a villain?"
Sparks ignited from Katsuki's hands. "You're really starting to annoy me, Deku!" He turned and punched Izuku, again using his explosions to increase the power. "I guess you get to play the villain next". He smirked.
Izuku wiped the blood off his face. What if my quirk is like brother's? Izuku thought. I just have to grab him with five fingers, a real villain would be gone, and I can play it off as an accident. He stood and faced Katsuki. "I'm not the villain here, Kacchan".
Katsuki's expression turned furious. "How dare you?!" He ran forward, hands sparking.
Izuku ran forward as well. He ducked under Kacchan's right hook and grabbed his arm.
"Get off of me, Deku!" He tried to create an explosion strong enough to throw Izuku off, but the explosion was weaker than usual. What? But I'm still sweaty! He tried to throw an explosive left hook at Izuku, but his hand only sparked."What the hell?!" Katsuki tried to ignite all his sweat at once, this time nothing happened at all. "Iz..." Katsuki passed out.
"Bakugo!" A teacher yelled, noticing Katsuki falling. "Izuku, what happened?"
Izuku looked at Katsuki's unconscious body. "I don't know. I... I touched him and he fell asleep. Is it my quirk?" Father said because he's not b- biolig- not my real dad, I wouldn't get his quirk. But he can give quirks, so did I get his?! I should wait until I'm home to see if I have Kacchan's quirk.
"Okay, I'll make sure to suggest your parents see a quirk councillor". She kneeled before Katsuki. "Bakugo, can you hear me? I'm going to check your vitals, okay?" She squeezed his shoulders.
Katsuki groaned. She slowly opened his eyes. He quickly tried to use his quirk, releasing his held breath when he saw sparks. "I'm fine. Deku's weak quirk is nothing compared to me".
Izuku thought, Maybe I didn't completely steal his quirk? Or maybe my version of father's quirk is slightly different?"
"I still need to take you to the school nurse," The teacher said.
"...Fine," Katsuki mumbled. He looked to Izuku. "You can be my sidekick".
That night.
"Father! Father!" Izuku ran up to Hisashi before catching himself and bowing. "Uh... sorry, father".
"It's alright, Izuku. I'm not busy, and you're clearly excited about something. Have you been able to activate your quirk?"
"Yes! It's like yours!"
Hisashi looked at Izuku with intrigue. "Really? How's that?"
"I touched Kacchan and his quirk stopped working, then he fell asleep".
"Ah, I see". Hisashi smirked. "Well, you don't have All For One".
"How do you know, father?"
"Firstly, it's impossible for you to have a quirk like mine, as I'm the only one with a quirk like mine. Secondly, I know what your quirk is. But if you have One For All, can you use Explosion?"
"Oh, yeah!" Izuku raised his arm, mimicking what Katsuki did. "It's not working".
"I could use Forced Quirk Activation if you're not using the correct activation method, but I don't have to because you don't have explosion".
Izuku looked down. "So... I don't have your quirk?"
Hisashi grinned. "Don't worry, with the quirk you do have, and your other skills, you're likely to grow into a worthy successor even faster than Tomura. I have no doubts that if I can only give away All For One to one person, you will get it".
Izuku eyes lit up. "Really?!" His face then saddened. "But... then what about brother?"
"I'm working on making copies of All For One, but if that fails, one of you will get my quirks, and the other will get my empire. Does that sound fair?"
Izuku smiled again. "Yes!" He moved faster than even Hisashi could perceive, hugging him.
"You melt my frozen heart, Izuku".