They didn't know who he was at the time, only knowing that he was the father of their soon to be born children. They didn't know that the other was pregnant with that bastard's children. Twenty-six year old Bakugou Mitsuki was the first to give birth. It was April 20th, three hours after midnight. She was tired from her labour but ecstatic to see her little son crying loudly as his bright crimson red eyes were clenched shut. He had a small tuft of ash blonde hair at the top of his head, damp from him being washed. Next to her was a 7 month pregnant 23 year old Midoriya Inko holding the young woman's hand. Her other hand was on her stomach, caressing it slowly in affection as she smiles sadly at the ash blonde haired woman.

"Such a beautiful son Mitsuki-chan. Maybe little Izuku can be the perfect little sibling for him," Inko says quietly but cheerfully as her long dark green hair falls over her shoulder. Mitsuki gazes into Inko's emerald green eyes with a sad but happy smile on her face as her crimson eyes glaze over with tears.

"Yes. Izuku-chan will be the perfect little sibling for my son. For Katsuki," Mitsuki says as the tears fall in both sadness and happiness. Their love left them broken and pregnant. They didn't realize he was a villain, they didn't realize he just wanted to use them for their body. He ran when he heard both of them were pregnant, leaving Mitsuki unmarried and heartbroken and Inko with no fiance and heartbroken. Midoriya Hisashi, also known as Black Fire, one of the most dangerous villains in the entire world.

Two months later, Inko held her newborn daughter. It was July 15th, exactly at noon. The little infant was crying softly as her bright emerald green mixed with dark forest green eyes shone with tears and curiosity. Her black hair with dark green highlights and tips sat atop her head as she looks up at the crying Inko. Mitsuki was next to her with 2 month Katsuki in her arms, she was smiling brightly down at the young child.

"Well! We'll have a lot to handle as we raise them both Inko-chan. Especially when we have to figure out if their an Alpha, Beta, or an Omega. But I think it's quite obvious which one is which," Mitsuki says softly as Inko nods, still crying. Mitsuki rolls her eyes before punching the green haired woman on the head.

"Stop being such a crybaby Inko-chan. We have a long road ahead of both of us if we want to stick together and raise our children," The ash blonde haired woman says with an irritated tone. Inko stops her crying and nods her head while looking down at her little Izuku. They knew she will have to go through many hardships, so would Katsuki but they knew that the 2 siblings would pull through. They had each other.

--

Giggles were heard from the park as kids from all ages played around. They ran anywhere they could and everywhere but didn't go near one corner of the park, everyone knowing what was happening there. 4 year old Midoriya-Bakugou Izuku was being bullied by the popular bullies of the day care all the smaller kids went to, including Izuku. Her hair was short, curly, and crazy and her mixed green eyes were glazed over with pent up tears as she stands in front of her older brother, 4 year old Midoriya-Bakugou Katsuki, protecting him. His spikey ash blonde hair was covered in dirt and blood and his usually bright crimson eyes were a dark maroon in anger. Izuku had on a navy blue t-shirt, black shorts, a pair of black tennis shoes, and a silver chain necklace with an explosion pendant on it. Her arms were spread, acting like a barrier between the bullies and her older brother.

"Don't hurt Kacchan!" She yells out, her voice shaking in nervousness and fear as she flinches at the angry auras around the bullies. Behind her, she heard the familiar sounds of small explosions, indicating that Katsuki was trying to shoot his explosions towards the bullies.

"What'd ya gonna do about it?! You're just a stupid girl! Girls are weak! They can't do anything except bow down to boys!" The bully in the middle yells out, making Izuku flinch as she looks down with sadness, her tears starting to fall.

"She's not gonna do anything. Get the stupid blonde behind her. He needs to be taught a lesson for stopping is from taking that girl for ourselves," The main bully says to his friends, making the three smirk as the other bullies start walking towards Katsuki. Izuku feels anger bubbling inside her as her tears of sadness turn into tears of anger. She screams out in frustration while thrusting her hands forward. The ground in front of her starts to jut out, making a wall, blocking the now frozen bullies as she glares at them in anger.

"DON'T TOUCH MY ANIKI!" The small black and green haired girl screams out, Katsuki watching her in awe as she activates her quirk. The wind had gotten crazier and small fires were sprouting on top of the rock wall while the fountain behind the bullies pours out water, some floating in the air.

"I-Izu-chan. Y-you unlocked your quirk!" The ash blonde boy exclaims in excitement and fear. He has to make a mental note never to piss off his little sister. Izuku looks at him from over her shoulder with wide eyes filled with happiness, anger, and sadness. She runs up to him and jumps onto him, his arms automatically wrapping around her back as she locks her legs around his torso. She sobs into his shoulder and bunches his black t-shirt into her hands.

"D-don't d-do that a-again Aniki! I-I can t-take care of m-myself!" Izuku exclaims into his shoulder as Katsuki sighs in exasperation before running a hand through her hair while glaring at the terrified bullies and crowd that surrounded them earlier.

"I'm your big brother baka. I always have to protect you. You're my imōto. Let's go home. Mama and Okāsan are probably worried about us," Katsuki whispers into the green haired girl's ear before he turns around and walks out of the park, not before making an explosion close enough to the bullies to make them jump but far away enough to not hurt them. This was the last time they were ever bullied until they went to middle school.

--

"Her quirk is one I've never actually seen Midoriya-san, Bakugou-san. I know a few who have at least one or two elements as a quirk, like Endeavor who has fire and his wife who has ice. I'm sure Izuku-chan here will become a great hero with her quirk. Having control over all main 4 elements and any element related to it," The doctor says as Izuku plays around with some wind by floating from each wall to the other, sometimes falling but gets back up with a smile. Inko and Mitsuki had bright smiles on their faces, happy that Izuku could live up to her dream of becoming a hero. Katsuki looks at the doctor in confusion and frowns slightly as he looks over at his little sister.

"Doctor-san. What do you mean by any element related to the 4 main elements? What are the four main elements?" The 4 year old boy asks, wanting to know more about Izuku's quirk so they could help each other.

"Good questions Katsuki-kun! The 4 main elements are the ones you see everyday, like Air, Water, Earth, Fire. What I mean by any other element are the ones that are related to the four elements but are still different. Take metal for example. Metal is made out of minerals from the earth which is an element she can control. If she can learn to control her quirk, she would be able to control almost anything if it's related to the 4 elements. Other elements that she could possibly control would be ice, lightning, lava, and possibly blood. Of course, it will take a lot of practice and by the time she is enrolled into U.A. which I have no doubt she will be along with you, she would only have mastered one element and possibly most of another," The doctor says, making Katsuki's eyes go wide in awe as he turns around to smile brightly at Izuku.

"Did ya hear that Izu-chan?! Doc said you can become a hero and get enrolled into U.A. with me!" The 4 year old boy exclaims in excitement as Izuku starts to jump up and down in happiness. Inko and Mitsuki smile at their childish excitement before they turn back around to the doctor. Inko had a look of worry on her face as she glances down at Katsuki and Izuku who started wrestling on the ground.

"H-her quirk. Will she n-need to hide it? My mother had one s-similar, the only d-difference being that she could only control water, wind, ice, and lightning. Izu-chan probably got Okāsan's quirk mixed with Otōsan's earth quirk and her father's fire quirk," Inko asks as she looks at the doctor with hopeful eyes. The doctor looks down at Izuku in deep thought before sighing in frustration.

"I would suggest to keep most of it hidden. Not all of it. People will underestimate her if they assume she is quirkless. I suggest to train her in each element she can use but only let her show one or two of the elements until middle school. Oh, and when training her, I would make sure that you focus on one element and not every single one at once. Maybe one week she can train in her water element and the next element she can train in her ice element," The doctor says, making Inko sigh in relief before she nods her head. Thank Kami! She didn't have to register Izuku as quirkless to keep her safe!

"Well. I think it's time to go Kacchan, Izu-chan. It was nice to see you doctor-san," Inko says as she stands up with Mitsuki. Katsuki and Izuku nod their heads, stopping their wrestling for now as they get up and bow at the doctor before running out of the room.

Inko bows in goodbye before leading Mitsuki out of the room, a frown of worry on her face. Mitsuki puts a hand on her friend's shoulder in worry, making Inko sigh in fear and worry as she stares at their children jumping up and down at the elevator, waiting for them.

"If anyone found out about their blood, people would have riots outside our house. We already have that somewhat a secret but now we have to keep Izu-chan's quirk somewhat of a secret too? I mean, we both can handle it. You're an Omega, a strong one at that, and I'm an Alpha but how long can we keep it a secret? How long can we keep Katsuki and Izuku " Inko asks as she glares at the ground. Mitsuki just sighs and hugs Inko tightly before leading them towards their children.

Katsuki and Izuku knew that their father was an evil man, they were very cautious about questions about him. They knew they had a Villain's Blood in their veins but they didn't care. So what if their father was a villain? They were going to be heroes anyway. They don't care what happens, they were going to shake the world.

--

Yo! Hope you like the new story! It is a My Hero Academia Fanfiction and is an Omegaverse AU. Izuku is female and Katsuki and Izuku are half-siblings. Izuku has a quirk and no, I won't make her OP. That's stupid unless I wanted this fanfiction to be filled with OP characters that beat Izuku beat she beats them when they meet again and so on. Also I may change the rating from T to M if anything happens and yes, there will be romance. Hope you like it!

OneFairyLeafNinja