Disclaimer: I do not own HP or BNHA and any of its characters.
AN: I finally got to it uwu.
I.
As far as Izuku could remember, there had been no mother in their household. With the addition of his father's appreciation for honesty, plus having had no parents himself, it'd been almost easy for the man to tell his young son that Inko made do with watching him over in Heaven.
And it couldn't be more true; because the veiled man dressed in black that visits their home monthly was named Death, who'd bow as he called his father 'Master'.
Izuku had asked him what it meant once he grew old enough to start questioning every little thing.
"It means your Uncle Death works for me, my heart." Papa answered, a face full of sad, fond smiles.
Izuku was smart, so although he couldn't truly comprehend what it was like to lose someone you'd never known in your whole life, he understood that his Papa was powerful. As for the people (Mama) his father spoke of, the 'dead' that Uncle Death worked with, they lived in a place far, far away where Izuku must never go.
II.
When Izuku had gotten his first injury, he was little more than a stumbling infant who'd somehow succeeded in climbing over the raised bars of his crib. His Papa had been, in the rarest of moments, absent.
It led his bright and curious mind to wander. Already, he was bored of the shifting skies enchanted into the ceiling. Therefore, Izuku directed his curiosity towards the world. Through the smooth and white wooden bars, Izuku saw that the room was a soft green with realistic trees with swaying leaves stickered on it.
Although at that age, Izuku hadn't necessarily known that it was the colour 'green' that soothed him because it reminded him of Papa; nor was he developed enough to understand the existence of trees. It hadn't stopped the infant, though, from being curious and reaching out.
Izuku wobbled on his chubby legs, letting tiny hands roam until he was sloppily hoisting himself over the crib. With half his body outside, gravity did its job and Izuku was falling forward on to the ground before a mysterious force prevented him from potentially killing himself.
Just in time, a small crack resounded throughout the room. Amidst it, was Papa's widened eyes as he cried "Izuku!". The boy was floating in less than a second, gently placed back into his crib before Harry tirelessly fretted over any injuries he might've gotten.
That day, Izuku learned that his Papa was Magic. He could do things like make the sky and trees, make things float, and even make him his first friend.
Out of pure, unaltered worry, Izuku now had an Underworld Hound to protect him in case anything happened. Genderless, it was 5 times Izuku's size alongside charcoal fur that was long and silky to the touch. Summoned to love and protect, it had four eyes like newly created stars.
Cooing, Izuku absolutely adored his new companion who never left his side. It was way better than having that Reaper underling, at least.
III.
When Izuku became three, his birthday was celebrated by a bunch of people he'd never seen before. Clutching at his Papa's black trousers, the boy flushed and stuttered when he introduced himself to the man with a face made from dark flames.
"Good afternoon," The stranger said, and Izuku could feel the softness in his husky voice. It was very soothing, he liked it lots. "My name is Kurogiri. It's very nice to meet you, little Izuku. Your father and I go to work together."
"You and Papa?" Izuku titled his head cutely.
"Indeed." The other man chuckled, making the boy squeal with delight because Papa never told him about his work before!
"Ne, Giri-san. What do you and Papa do? Izu-kun wants to know! Please? Papa never says anything and I'm gonna get a Quirk soon so I'm a big boy now!"
He watched as Papa gave the cool looking Giri-san a look which made the man's incorporeal form flicker anxiously. Izuku's face turned upwards when he felt Papa's hand ruffle his hair. "Not now, son. I'll tell you later once the party ends, okay?"
"Okay!" the boy agreed brightly. It was pretty weird after that- Giri-san looked like a statue when Papa glanced back at him. "S-sir." The man stuttered out. "My apologies-"
"It's fine," Papa waved a hand nonchalantly. "He was bound to find out anyway. Might as well ease him into it early. I myself always hated it when people left me out of the loop. He's my son, he deserves better than that."
After that, Kurogiri left early to go back home, or so he said. Izuku was later introduced to other people who also worked with Papa. All of them were really friendly and nice despite their looks which had scared Izuku at first. Apparently, Papa had a lot of people working for him.
Uncle Death must have a lot of friends.
IV.
When night fell, Izuku couldn't help but listen with awe when his father explained his 'work' to the best of his abilities. "Papa cleans up very bad guys, Izu-kun."
Upon receiving a questioning look, Harry took in a deep breath. "Sometimes, there are people that like hurting other people and in order to stop that, Papa has to make sure they can't do so anymore."
"But don't villains go to jail? And they're Heroes! like All Might! He defeats the bad guys, right? Why does Papa have to do it. That's not your job." Izuku scrunched his nose.
Harry sighed as he tucked his precious treasure to bed. "Well, my heart, Heroes defeat them, yes. The villains get sent to jail too. But they can still move, and if they can still move, they can do bad things to other people because they aren't dead."
"So you make sure they're 'dead'? So they can't ever do bad things later?"
Harry nodded, "Yes. But killing another person is bad. So, in a Hero's point of view, I'm a villain. Your Papa's job is to be a villain, Izu-kun."
"NO!" Izuku screamed, terror in his eyes that look like his father's. Harry flinched, reeling back for the criticism to come. Either way, he'd love and care his son as he always did. The rejection would hurt, but nobody ever gave him the opportunity of choice before. It would be worth it.
"Papa's not a villain! You're good. Papa's making sure that bad people can't hurt others and that makes you a Hero! You're my Hero, Papa!"
Harry kissed his son's cheek. "But I make sure that they suffer (in the afterlife), my heart. I hurt them as much as the bad guys have hurt other people. Sometimes, even heroes and civilians get hurt. I don't want you to choose, Izu-kun. Always know that once you're older, Papa will support you in anything you want to do. Even if it's making sure I can't hurt anyone else anymore."
Hot tears ran down Izuku's cheek. He hated the way Papa said it like the bad guys didn't deserve it in the first place. Besides, Heroes got injured all the time, what was another injury if it made sure no one else suffered again?
He made his thoughts known to his father, who looked rather funny with his stunned expression. Mouth fixed into a shocked opening, Izuku giggled and chucked a finger into his father's mouth. "Flies will go in!" The boy sung playfully in mimicry of his father's own words.
"I love you, Izuku. Papa loves you very, very much. Do you still want to be a hero when you grow up? Like All Might?"
"Yeah!" Izuku answered without hesitation. The boy yawned, and added like it was afterthought. "And you could be like Sir Nighteye, Papa. You'd be my sidekick and stay by my side and we'll defeat bad guys better than All Might together because they'll never get back up again."
By their side, dubbed 'Siri' sniffled, whining for scraps of attention it never got during the party because his master and little master had been occupied. In turn, Izuku carelessly pulled its soft, floppy ears which made Siri huff.
"Oh. But Papa, that means you can't clean up all the bad guys. You have to leave some for me too! It's a promise, okay?"
"Of course, Izu-kun. Promise. I'll make sure that you always have bad guys to put down. Don't worry, your Papa will take care of everything before you become a Pro-hero." Harry kissed his son's forehead this time. "Good night, baby. Sweet dreams."
"Good night, Papa."
It would seem as though he'd have to take up that offer to join the League of Villains after all, thought Harry as he left Izuku's room (protection-charmed twice over). Especially if his son wanted enemies to play with in the long run.
V.
Izuku was 5 when he first saw his Papa's work first hand. The home tutor had gone back after the usual time. That day, the topic had been Art. Kurogiri-sensei had taught him how to draw animals- Papa was sure to like the snake he drew. It had become his favourite animal since he discovered he could talk to them.
The boy had asked once why he didn't go to school like normal children did. Papa told him that since he inherited the family's Magic, it would be best if Papa first taught him how to control it first. It would be very rude if he accidently turned his teacher's hair blue after all, the man had chuckled.
They lived in penthouse in one of the pricier side of town. The place was spacious, with its own pool on the open veranda that Siri and Izuku loved to use. Home had a large kitchen and a spacious, cosy living area. It also had 4 bathrooms and 5 rooms which consisted of the private library, Papa's study, the master bedroom, Izuku's bedroom, and the final one that Izuku's wasn't allowed to go into.
Papa used it for work, Izuku knew. There wasn't a lot Papa wouldn't tell him if he asked- the 'work room' was one of them. Normally, it was kept under lock and key if it wasn't in use. When it was, Harry made sure to lock it from the inside.
Lit with untamed emotion, Izuku's accidental Magic had given him a little help in unlocking the lock without notice. With a swift turn, the door swung open.
"PAPA! Look at what I drew! It's a snake. See?! Giri-sensei taught me how to make different greens and shapes and-" the boy babbled, only to freeze momentarily when he saw the state his Papa was in.
The man was wearing an iron-pressed white button down shirt layered with a black vest and a pair of equally dark slacks. The outfit was pulled together with a slender tie, pattered systematically with many bisected circles in their respective triangles.
Even with the blood on his fitting leather gloves, Izuku couldn't help but think that his Papa looked really good. Like one of those powerful bosses on the TV shows Papa liked to binge watch on. Really cool.
The boy decidedly pretended that the bound man with rope in his mouth wasn't crying and begging for Death's mercy to descend upon him.
"It looks lovely, baby. The colours are wonderful, but what did I say about coming into this room?"
Izuku visible drooped. "I'm sorry. But this was my first snake drawing and I wanted to show you."
"I forgive you. Remember to knock next time, please. I know I can't truly stop you from coming in if I tried, but it'd be nice to know beforehand."
"Who's that? What did he do?" Izuku curiously inquired after obediently agreeing. Holding his masterpiece, he walked towards the bad guy before his father stopped him half-way through. Harry conjured a pair of plush sandals, "You'll get your feet dirty. Wear this."
The boy accepted it with thanks, his eyes scanned the bloody figure up and down. Perhaps it was because he was born in Death's presence that repulsion didn't come as easily. Harry pressed his lips into a thin line.
"Papa's working for an organisation now, sweetheart. It means many people coming together to work for something." Harry placed a glove hand on the stranger's cheek, watching the wounds pulse with blood. "This man, is a traitor. He gave away information he shouldn't have for money. And it wasn't for the Good either."
"Now, Izu-kun. I don't think I've told you this before, but Papa hates traitors. Especially ones that rat others out. It's okay if you betray someone that hurt you, because I want you to always put your safety first. But, if they do it for money, in cowardice, to sell their own friends out, traitors are the type of people that deserve to rot in hell.
Never betray your chosen friends and family, my heart. It is one of the worst things you can do."
Izuku took it as gospel. A look of enlightenment on his star-dusted face. Eventually, Harry took off his gloves to gently push his son out of the room, leaving muffled pleas for Death to die on the traitor's tongue.
"Out you go, my little snake. Let Papa see what you've drawn, we can have your favourite Katsudon for lunch today. You did really good, Izu-kun- it looks gorgeous. I'm so proud of you."