Chapter Text
Gaining New Sisters Who are Devils!
A young man is seen in his bedroom and at his desk doing a few drawings of people in cool looking costumes like superheroes in the anime shows and manga, with his room being filled of his favorite superhero anime stuff like posters and limited-edition action figures.
"Izuku, sweetie! It's time to go!" A woman called out to him.
"Okay mom, I'll be right down!" The boy named Izuku responded.
"You better come down or else I'm gonna drag you down!" Another woman shouted in rage.
"Yes, mother!" Izuku flinched in fear a bit, but he knew his other mom means well to him.
Izuku is 15-year-old boy though somewhat short for his age, his round face is framed by a short mop of fluffy dark-green hair which curls up at odd angles around his head, casting noticeably dark shadows onto itself. His eyes are large and somewhat circular, their irises the same shade of green as his hair. He wears a green jinbei over a white shirt, gray sweatpants, and somewhat big red shoes.
"Mom Raphaeline said she got a big announcement she and Mom Sapphire has; I wonder what it could be?" Izuku asked himself as he leaves the room.
(Later, Burger-Noodle Restaurant)
"WHAT?!" Izuku screamed in shock of the sudden news his two moms told him, and almost dropped his burger.
"I'm getting two new sisters?!" Izuku gasped.
"That's right, we decided it's time to extend our little family into a slightly bigger one!" Raphaeline nodded with a cute smile.
Raphaeline is a beautiful buxom, young woman with long hair and green eyes. She wears a white long sleeve mini dress and donned a brown belt with a gold buckle that's in the shape of wings with a halo above them, and white high heel boots. Breasts size: J-cup.
"Oh man, this is so sudden and you two really decided on doing this now?" Izuku asked shock.
"Well, it wasn't easy, believe me. When you mom brought up the idea of getting you little sisters, I thought she was crazy that we have to let ourselves by fucked by some guy we knew." Sapphire said without shame.
Sapphire is a beautiful buxom, young woman with red hair and red matching eyes. She wears a red tank-top showing the bottom-half of her bosom, black strap panties with an orange skirt-like cloth that allows most of her buttocks to escape, long black stockings, and orange small boots with yellow toes. Breasts size: K-cup.
"But I made it clear that we don't have to go through pregnant process and choose the adopting part." Raphaeline added.
"Okay, so I'm getting my own sisters. How old are they?" Izuku asked, becoming curious about his new little sisters.
"Thought you ask that; one is about a little older than you, probably a year older while the other one is the same age as you though months below you." Sapphire answered.
"So, I'm getting one older sister and one younger sister. This is still crazy for me; I didn't think I'd get any siblings now of all times." Izuku said.
"Izuku, didn't you ever thought about wanting your own siblings. I believe it was years ago when you were younger." Raphaeline mentioned.
"I can't remember some of my childhood, but maybe I felt something like that along the way." Izuku mentioned while finishing his burger.
"Yeah, better late than never. But even so, those two are sure taking so long to get here." Sapphire angered.
"I'm sure they have their reason for being late. Although I do feel worried, they were supposed to be here five minutes ago, maybe we should call the police!" Raphaeline concerned.
"I don't think we need to involve the police; I have a feeling we'll meet them soon." Izuku believed.
"So, that famous Deku instinct. Never fails." Sapphire chuckled.
"If your father and were here, they would be so proud of the young man you have grown to be." Raphaeline smiled at her son.
"Oh, come on, I'm not that special." Izuku stuttered and tried covering his face.
"Hey now, you're making yourself embarrass of the Tojo family name. At least try to make yourself look tough when you meet your new sisters." Sapphire scolded.
"I'm sorry!" Izuku flinched a bit.
"I'm gonna go to the bathroom. Be right back!" Izuku left the table and went onward to the bathroom.
"Hey, don't you think we should tell him?" Sapphire asked.
"About what, beloved?" Raphaeline asked as she moves her hand onto Sapphire's hand.
"You know damn well what I mean, about his two new sisters. Don't you think he should have the right to know about them, about what they really are?" Sapphire asked, with a deep worried expression in those tough eyes of hers.
"I feel bad about not telling Izuku the truth about those girls, but I believe he needs to discover this on his own and I hope that will help him overcome suffering he went through ten years ago." Raphaeline stated, then felt her wife's hand closing onto hers.
"That incident… Can't believe it's gonna come down to that, I sure hope you're right about this." Sapphire turned to press her forehead onto Raphaeline's.
"Oh please, have I ever been wrong before?" Raphaeline asked giggling.
"Well, there was that one time you tried to combine all those hot sauce in boiling water and set the kitchen on fire." Sapphire reminded her wife of that time.
"Hey! I was trying something new! How was I supposed to know that the sauce would suddenly burst into flame?" Raphaeline asked wincing.
"God, you act like such a kid." Sapphire giggled and kissed her on the lips.
Meanwhile with Izuku, he is having some thoughts about the news of gaining two new sisters.
"I'm going to be a brother, a middle brother to be exact though I'm really nervous about this. What if they don't like me and I rest up the relationship my moms are hoping to create? I know things are hard for them since dad died around the time when I was only a baby and I don't know much about him, but still I have to do my best to make those girls feel they are part of the family and…" Izuku mumbled on about how to make this work for everybody in the family.
However, he was too distracted in his thoughts that he didn't realize that there was someone else in the bathroom, it also didn't help that the bathroom was never locked when he opens it and saw a girl inside just about to lift up her underwear.
When both Izuku and the girl met eyes and realize the scene that is happening right now, Izuku's face started to light up like a red Christmas tree and look over at the sign next to the door.
"(The lock is broken. Make sure you knock.)" Izuku thought read the sign.
"(I DIDN'T SEE IT!)" Izuku thought screamed
He and the girl let out a very loud very and threw her hand right at Izuku for a hard slap.
"Izuku! Was that you, honey? We heard screaming!" Raphaeline asked as she and Sapphire came to the bathroom.
"Anyone who hurts my son will get it!" Sapphire angered.
But both mothers look at the scene of their son on the floor groaning in pain with steam coming from his cheek and the red hair girl standing over Izuku, and one other girl standing with the two mothers.
Minutes later, after Izuku regain consciousness and outside started raining, the Tojo family and the two new girls sat together to start with the introduction.
"It's nice to meet you. I'm Maria Naruse." Maria introduced herself.
Maria is a petite beautiful girl with long silver hair and purple eyes in her human form most of the time. She is seen dressed in a black dress that has white frills most of the time and what seemed to be like a functional keyhole on her collar, black leggings, and boots that have a purple heart on them. Breasts size: AA-cup.
"I'm Izuku Tojo. It's n-nice to m-meet you." Izuku greeted nervously and feeling bad about the bathroom thing.
"I'm Mio Naruse." Mio revealed her name.
Mio is a beautiful young woman shorter than Basara with long crimson hair reaching her waist and pink eyes. For someone her age, she has been noted for having a distinctly slender yet curvaceous figure with enormous, bouncy breasts and sizeable buttocks. She wears a purple shirt with a pale blue dress-like shirt on top, thigh-length black socks, and fancy red shoes. Breasts size: G-cup.
"Thank you for coming to see us, I know the first meet wasn't how we planned, but we can promise you that Izuku is a lovely boy and the kindest one you'll ever meet." Raphaeline petted her son's head.
"But he can be a wimp sometimes. So, try and help us toughen him up if you can." Sapphire said.
"Mom Sapphire, please don't make it sound like it's okay to beat me up!" Izuku exclaimed.
"Isn't he cute when he's blushing!" Raphaeline giggled.
"Anyway, let's get going. We have a new house to get settle in." Sapphire smirked.
Izuku looks over to Mio hoping she would at least spare a second to look at him, she did and just turns her head to the side with a huff showing that she is still mad at him about what happened earlier.
"(Earning her trust is gonna hard now.)" Izuku thought sighed.
(The Next Day)
Morning has come and Izuku is sleeping wonderfully on his bed, or at least a second ago until he felt something weighing on his body and groans a bit.
He opens his eyes and the first thing he sees in the morning are a pair of big boobs above his face and his eyes widen with shock.
"Oh! You're finally awake! Good morning!" Mio greeted, revealing herself sitting on top of Izuku.
Izuku screams though only for a second with his face turning completely red and his heart beating like shit crazy.
"Did you sleep well?" Mio asked.
"Y-Yeah, I'm awake! And w-wondering why are y-you in my r-room?" Izuku asked stutter and freaking out.
"I came here to wake you up. I thought that a teenage boy would like to be woken up this way." Mio explained.
"I'm pretty sure I'm not one of those teenage boys who are into things like that. Where did you even get an idea like that?" Izuku asked.
"Just performing service. Also, Mother Raphaeline told me that she used to wake you up by pressing her body onto you." Mio mentioned.
"(Oh, mom! Why did you tell her that?)" Izuku thought exclaimed.
"But was it really necessary to do this sort of thing?" Izuku asked.
"I'm just here to help you get up and get ready, okay?" Mio said as she started rubbing her button onto Izuku causing her breasts to bounce as well.
"M…M… Mio…!" Izuku tried to say she should really get off, but the words wouldn't come out of his mouth for some reason.
But then Mio stop as she felt something from under the sheet.
"Oh? What's this? I think I can feel something hard under the sheets." Mio wondered.
"Okay! I'm awake now, so you should really get off!" Izuku begged as he fears that the arouse is getting to him, and he almost screamed when Mio went under the sheet.
"(Holy Devil! What is going on here? Are we really about to do something incent even though we're siblings now!)" Izuku thought panicked.
"Huh, what's this?" Mio wondered as she is holding a box in her hands, and then she suddenly threw herself back and fell on the floor. She also threw the box that hit on Izuku's face.
"Mio? Are you okay?" Izuku asked, concern for Mio's safety.
"Yeah, I'm fine." Mio answered.
Then Izuku notice the box next to him and picks it up to get a closer look and saw this box to be strange with a picture of a girl sitting on a bed and her underwear expose. The title is also strange that it's called "Me and My Real Stepsister's Youth in an Unmarked Lot".
"Huh, what is this and why is it in my bedroom?" Izuku confused.
"How dare you! We're all living here together under one roof and you're playing games like that?! Gross, I knew it!" Mio disgusted at Izuku as she crosses her arms under her breasts.
"Wait, wait, wait, it's not what it looks like! Even though I don't know what you mean, and I don't even know what this game is!" Izuku tried to declare his innocence.
But as he stands up on his bed, his foot suddenly trips on the sheet causing him to fall over on top of Mio. Now both are on the floor with the boy on top and their faces are very close to each other.
"(Oh no, I'm somehow making it worse!)" Izuku thought panicked.
"Hey! Get off of me, you pervert!" Mio demanded and threw a knee right in Izuku's manhood causing him to gasp and fall over on the side.
Mio gets up and leaves Izuku's room.
"If you ever try something like that again, I'll kill you a hundred times." Mio threatened.
"No wait, I'm innocent! I'm not a pervert!" Izuku tried to reason with Mio while holding onto his manhood, but Mio just left.
Izuku just lays on the floor sighing that his chance to make peace with Mio has been foiled again, and then he thinks about yesterday at this new house they moved in.
"This house isn't so bad, but I still say we could've gotten ourselves a bigger one." Sapphire stated.
(Flashback)
Izuku is standing outside of the house on top of the stairs with his two moms at the bottom of the stairs.
"It's fine, the house is in very good condition even though the price was very cheap for some reason." Raphaeline said.
"The girls have also gone through some tough things in the past including losing their parents not too long ago. In fact, Maria doesn't even want to go to school anymore which saddens me." Raphaaeline explained about the two girls.
"Oh, I'm so sorry for them." Izuku said.
"Hey, Izuku. Are you mad at us?" Sapphire asked, getting the boy's attention.
"I mean we basically just moved out of our old house and bragged you along without giving you any sort of explanation." Sapphire pointed out.
"Well, I am sad that I have to say goodbye to my friends and transfer to another school. But I'm not mad at you guys, I could never do something like that." Izuku answered making the mothers feel relieved.
"Also, I have a feeling there is a big reason why we're all together. Why you decided to adopt them and have them live with us." Izuku said.
"Yeah, you could say there's something big going on." Raphaeline nodded.
"Now the question is, are you prepared to protect them with all your might?" Raphaeline asked.
(Flashback End)
"(Protect them.)" Izuku thought repeated the words in his head as he walked down the stairs to the kitchen.
"(I may not know what this danger that I'm supposed to protect them from, but I swear I will do whatever I can to help them.)" Izuku thought promised.
Izuku walks into the kitchen where Maria is doing some cooking right now and notices him coming in.
"Oh, Izuku! Good morning!" Maria greeted.
"Good morning, Maria." Izuku said as he took out some milk from the fridge.
"Breakfast will be ready soon." Maria informed.
"Oh, thank you! I didn't you could coOOOOOOOOH?!" Izuku gasped in shock.
"Huh, what is it? Is something wrong?" Maria asked. The little girl is shown to be wearing an apron, and it appears that she is only wearing the apron.
"Something… I, huh… Maria, why are you d-dress like that!" Izuku asked with his cheeks blushing again.
Maria was a little confused at first until she looks down at her apron and got an idea in her head.
"I get it. You thought I wasn't wearing anything else. Too bad!" Maria twirled around to reveal her green and white stripe underwear. "I'm actually wearing underwear today!"
This causes Izuku to blush even harder and crushing the cardan of milk in his hand.
"I can see why you got all excited! You are a healthy teenage boy after all! Right?" Maria teased.
"No, no! I wasn't thinking of anything bad! I swear?!" Izuku exclaimed.
And so, Izuku's first day of having two sisters started off with a high note.
KO a new story is born and hope you all enjoy it!
Decided to make a little My Hero Academia and Testament of Sister New Devil crossover with Izuku replacing Basara entirely as the main character, and in this story both mothers of Angels and Demons are here raising him. This is for the final anime airing of the show since we never got season 3.
Now Izuku is going to be living with two new sisters and he's about to discover who they really are and what he must do in order to protect them! Also, I have decided to get some other characters from different anime shows in the story to make things interesting.
KO comment, favorite, and follow through of how this new story will go!