Me: Hi! I'm SquareWaffles, and this is my first ever fanfic! I hope you guys like it! ^_^

Pairing/s: Daddy! Nijimura x Mommy! Oc

Summary: When you've got eight kids, it's bound to bring a lot of experiences and chaos. AU

Ages:

Ogiwara Shigehiro: 36

Nijimura Shuuzo: 34

Nijimura Isaki: 33

Nijimura Shogo: 13

Nijimura Ryota: 13

Kasamatsu Yukio: 13

Nijimura Shintaro: 11

Takao Kazunari: 11

Nijimura Daiki: 10

Sakurai Ryo: 10

Nijimura Atsushi: 9

Himuro Tatsuya: 9

Nijimura Satsuki: 6

Nijimura Tetsuya: 5

Himuro-Kagami Taiga: 5

Nijimura Seijuuro: 5

Mayuzumi Chihiro: 5

*I only added certain characters to be the kids' best friends, who will be their classmates.

Disclaimer: I do not own the awesomeness that is Kuroko no Basuke. I, however, own Isaki.

~Ten in a Rainbow~

First Day of School

"Daiki, I swear if you don't wake up, I'm giving Satsuki your blueberry pancakes!" Nijimura Isaki, the Nijimura matriarch, grumbled as she called out to her fourth eldest son, who was still groggy from his sleep. He was upstairs and in his room, rubbing his eyes when he heard his mother and panicked at what she had said. He hurriedly ran down the stairs and ended up tripping and colliding with his second eldest brother, Ryota.

"Wah~ you okay, Daicchi?" Ryota asked his younger brother after gripping the boy's arms to steady his movements. "You shouldn't run down the stairs. You might hurt yourself."

"Bah, who cares?" Daiki grumbled, shaking himself off of his brother's grip. "Kaa-san might give Satsuki my pancakes!" He then dashed off into the kitchen, where the rest of his siblings were seated. Shogo was already seated next to their mother, who was placing more servings of pancakes on his plate. Beside him were Shintaro and Atsushi. Across them were Satsuki, Tetsuya, Seijuuro, and their father, Nijimura Shuuzo, who was downing a cup of coffee.

He grinned once he realized his pancakes remained untouched and took his seat beside Satsuki, who was enjoying her strawberry pancakes. He happily dug into his meal and burped once he finished all five of his pancakes. "Thanks, Kaa-san!"

Isaki sighed at him affectionately, reaching out across the filled table to ruffle his hair. "Just learn to wake up early, alright, Daiki? Tou-san and I won't always be here to wake you up."

"Then Ryota or Shogo can wake me." Daiki shrugged, wolfing down a pancake he had stolen from his father, who rolled his eyes at his son's antics, but let him take it anyways. "If not, the others can."

"Oh, Daiki," Isaki shook her head at him with a smile on her face. "What if you're alone? Who'll wake you then?"

"I'll get an alarm clock."

"Not even an alarm clock can get past your thick skull," Shogo snorted as he took a sip from his orange juice.

Daiki glared at him. "You're skull's thicker!"

"But you didn't deny it."

"You didn't either!"

"Settle down. It's too early in the morning to cause such ruckus." Shintaro sighed exasperatedly, adjusting his glasses so they wouldn't fall off his nose.

"Shincchi's right, you know!" Ryota said cheerfully as he sat in between Isaki and Shogo and finished the remaining chocolate chip pancakes on his plate. "Mornings should be peaceful! Right, Atsucchi?"

The purple haired boy continued munching on his mountain of pancakes, ignoring what the blonde brother had said. Ryota pouted at this, muttering something along the lines of 'un-cute little brothers'.

Shuuzo glanced at the clock. "Well, time to leave. See you all later, I guess." He gave each of his children a pat on the head before kissing Isaki on the cheek, which elicited a "gross!" from Daiki. He then grabbed his suitcase and left for work.

"And it's about time for you all to head to school." Isaki told them. "I have to drop by your Uncle Shige's house today. He's come down with a fever. Ryota, Shogo, I'm leaving you in charge if I'm not home by the time school ends."

"Yes, Kaa-san!" Ryota and his older twin brother, Shogo, said in unison.

Isaki gave them a smile before kissing each of them on the forehead. "Finish your food and grab your bags. You don't want to be late on the first day of school!"

"Hai!" they chorused.

~Ten in a Rainbow~

Teiko Middle School, the very Teiko their parents had studied at, and the very Teiko known for its brilliance in sports and academics, was a large building situated right next to Teiko Grade School, so it was easy for Ryota and Shogo to drop off the younger ones while Shintaro, Daiki, and Atsushi headed straight to their classes. Various females, even adults, blushed upon seeing the famous Nijimura twins, part-time models who were known for breaking hearts while at the same time being good at sports. The twins smirked at the attention.

"Ryo-nii, why are they looking at you like that?" Satsuki asked him as she held his hand. It was her first time here at Teiko. She had never gotten along with the kids in her old preschool, and she hoped that she would find a friend this year.

"Ah, you'll understand when you're older, Sacchi." Ryota grinned at her, effectively dazzling the women and children near them. Behind the blonde and pinkette, Shogo was reluctantly holding Tetsuya's hand, whose blank face didn't show his nervousness. Seijuuro walked calmly beside Tetsuya, and he was holding his older twin's other hand. The redhead didn't need support, but he wanted to give support to Tetsuya.

They entered the building and turned right, stopping at the first classroom on the left. This lower floor was for the preschoolers, in this case, Tetsuya and Seijuuro.

"Be good, okay-ssu? Make us proud!" Ryota said, hugging his two brothers while Shogo grumbled in the sidelines about how his younger twin was wasting time by talking nonsense. "Shocchi, anything to tell the twins?"

At the look of the twins' expectant faces and Ryota's own do-it-and-I'll-give-you-money-later face, he sighed. "Uh, do your best?"

Ryota shrugged. "Good enough. Enjoy!"

The twins nodded and entered their classroom hand-in-hand.

The older twins then led their pink-haired sister up to the first floor, to the second classroom on the left corridor.

"That's your classroom." Shogo told his only sister, who nodded and hugged them both, much to his dislike.

"See you later!" she said cheerfully as she entered the classroom.

The model twins then headed downstairs and rushed towards their school, although they were in different classes.

"Wah~ we're gonna be late!" Ryota whined as they entered the gates of Teiko Middle School, and bounded up the stairs towards the second floor.

"They'll excuse us." Shogo shrugged, shoving his hands in his pockets as they ran. "They like us too much."

"If we're in trouble, I'm blaming you."

"Why the heck are you blaming me for this? You're the one who kept talking."

"But you're older-ssu."

"What does that have to do with anything?!"

~Ten in a Rainbow~

"Shin-chan, we're classmates again!" was the excited shout of the raven-haired boy who glomped the unsuspecting boy with glasses.

"Takao," Shintaro hissed, glaring at the boy on top of him to get off.

Takao Kazunari grinned as he let go of his grip on his friend and stood in front of him. "Ne, I heard your little siblings are starting today? I wanna see them! Can I meet them?"

"No," he grumbled as he took his usual seat at the third seat of the third row. "Cancers are ranked eighth today, and although I have my lucky item, I won't risk it."

"Huh? What does it say about me?" Kazunari whined as he sat next to his best friend. He had known the green-haired boy since second grade, and proclaimed himself the horoscope-believer's best friend since third grade.

"I must endure the presence of a Scorpio, but the Scorpio will cause bad luck for Aquarius and Taurus." Shintaro told him. "Satsuki is a Taurus and Tetsuya is an Aquarius."

Kazunari pouted. "Oh, fine! When does Oha Asa say I can see them?"

"When it says so," Shintaro huffed.

~Ten in a Rainbow~

"Ah, I see we are seatmates again, Atsushi," Himuro Tatsuya told his giant purple-haired friend, who was slouching on his seat and eating the chips his mother had given him as a snack earlier. The giant mumbled an incomprehensible response, but Tatsuya merely chuckled at his antics. The smaller boy had a little brother, Taiga, so he knew how to deal with Atsushi.

"Will we be seeing your other brothers today? I'd like to meet them," Tatsuya hummed. He was very interested in the giant's older brothers. He knew that his friend had two older brothers who were models and in middle school, and an older brother a grade above them. However, he knew of Daiki, a fifth grader, who kept trying to steal Atsushi's snacks. "I also heard your little siblings are starting today?"

Atsushi chomped down more chips in response and Tatsuya took that as a 'yes'.

"I see." Tatsuya nodded. "Maa, Atsushi, you should finish your chips before the teacher comes. We have Yuuka-sensei this year for homeroom, and I don't think you'd want her to see you eating."

Atsushi whined in response and shoved down the rest of the chips in his mouth before standing up and throwing his empty bag of chips away. He sat back down on his chair and looked at Tatsuya with wide eyes, "Will Muro-chin buy me more chips later?"

"If you behave, Atsushi."

"Okay~"

~Ten in a Rainbow~

Daiki grumbled as he sat on his seat impatiently, waiting for class to begin already. He wanted to get the day over with – he wanted to go and see Uncle Shige, and see if his favorite and only uncle would let him play some basketball later. Beside him sat his friend of sorts, Sakurai Ryo, who watched the bluenette curiously.

"A-ano, are you okay? I'm sorry for asking!" Ryo told Daiki, who looked at him with a raised eyebrow.

"I'm fine, geez." Daiki huffed. "No need to apologize for that."

"I'm sorry!"

"Oi."

"I'm—" Ryo was about to apologize again, but was cut off by Daiki's glare. He turned away from his seatmate and whispered, "I'm sorry."

Daiki groaned out loud.

~Ten in a Rainbow~

"Alright, class, we've got two new students today! I want everyone to listen to them, okay? Be nice," Erika-sensei told her preschool class, who sat on colorful chairs behind colorful desks. In fact, the whole classroom was filled with colorful things, ranging from the letters of the alphabet, educational posters, and the like. The brown-haired teacher gestured for the twins to come over and they stood in front of the class. "Introduce yourselves, please!"

Tetsuya glanced at Seijuuro nervously. He didn't want to go first.

Seijuuro sighed but gave his older twin a smile. Even if the redhead was younger, it sometimes seemed as though he was the older twin, with how Tetsuya always came to him for advice. It never annoyed it – in fact, he liked how his brother trusted him to guide him in these kinds of things. "My name is Nijimura Seijuuro. I like my siblings and shogi. It's a pleasure to meet you all."

He looked at Tetsuya and gave him a soft nudge on the shoulder. Tetsuya glanced at his twin's red eyes and nodded. "I'm N-Nijimura Tetsuya. I like Sei-kun, my siblings, and the rest of my family. Nice to meet ya."

Erika-sensei almost squealed at their cuteness, but managed to regain her composure. She instructed them to sit on the two empty chairs at the front of the class and once they had settled, she began her lesson. "Alright, kiddies! Our first lesson of the day will be Math!"

She heard several groans. She didn't complain, though. She knew how much she hated Math when she was a kid. "Now, who can tell me what one plus one is?"

A boy on the back row raised his hand and said, "Um, t-two?"

"Very good, Kenta!" Erika-sensei said as she placed a sticker beside his name on the whiteboard next to her. Every student who got an answer correctly or showed good manners was always given a sticker. The number of stickers you had by the end of the year determined your placement in class. "You get one sticker!"

"Yay!" Kenta cheered happily, sticking his tongue out at the twins when Erika-sensei wasn't looking.

Seijuuro huffed at Kenta, looking at Tetsuya. "Say, shall we use this opportunity to get a lot of stickers? I don't appreciate him taunting you."

"I-It's fine, Sei-kun. You don't need to," Tetsuya said, even if he actually did want to get stickers. He didn't like bullies, which meant that he didn't like Kenta, but he also didn't like unnecessary fighting. He felt a pat on his head and looked up to see Seijuuro smiling at him.

"Maa, you're too nice for your own good, Tetsuya," Seijuuro said. "Do you truly not want me to gain stickers?"

"You can, but I d-don't need to. I'm fine," Tetsuya replied.

Seijuuro nodded and heard Erika-sensei say, "Wow! You all know a lot about addition, don't you? Alright. Whoever answers this next question gets three stickers!"

Her answer motivated some of the students who had experience in Math, including Kenta, who was determined to get the most stickers. Seijuuro smirked.

"Who can answer seven plus seven?"

Those who were motivated were puzzled. What was seven plus seven, probably went on in their brains. Even Kenta looked a bit confused as he motioned with his fingers, as if adding with them.

Seijuuro raised his hand. "It's fourteen."

Kenta seemed shocked at how the redhead had gotten the answer so easily, and pouted at this development. How could he have been beaten by the new kid?

Erika-sensei clapped. "Good job, Seijuuro! You get three stickers!"

Seijuuro's eyes lit up with delight once he saw three stickers next to his name. He would admit that this whole sticker process was a little childish, but he didn't mind. He knew Tetsuya liked stickers, so he would get as much stickers as he could.

He noticed Kenta glaring at him and gave the boy a smirk. No one messes with Tetsuya.

~Ten in a Rainbow~

Isaki shivered. Why do I feel like there's a bromance going on with my kids?

"Yo, Isaki, you alright? I didn't get you sick, did I?" her cousin-in-law, Ogiwara Shigehiro, asked her as he lay down on the bed. He hated getting sick, especially when it prevented him from playing basketball.

"No, you didn't." Isaki assured him as she replaced the now sort-of dried up cloth on his head with a damp one. "My mother instincts were trying to tell me something."

"Huh…" Shigehiro let out. "Was it a bad thing or a good thing?"

"I'm not entirely sure about that."

~Ten in a Rainbow~

"Um, I'm Nijimura Satsuki! It's very nice to meet you!" the pinkette said as she scanned her classmates' reactions. Some were uninterested, others were indifferent, and a select few showed some interest. She was pleased – it was better than being glared at all the time.

"Ne, Satsuki-chan, you can take a seat next to Takeru-kun, over there," her teacher, Wakana-sensei, told her, pointing at a rather cute boy who several girls were staring at with blushes on their faces.

Satsuki realized that this boy must be popular, and groaned in her head once she realized that she was going to be sitting next to him. That meant that his fangirls would hate her, and this lessened her chances of finding a friend. She sighed internally as she sat next to him. Her plan was to ignore him, but he managed to ruin it.

"Hi, Nijimura-chan! I'm Yagami Takeru! Nice to meet you!" he said, grinning at her and holding out a hand.

At that moment, Satsuki understood why he had fangirls. He had dark blue hair – not the annoying color of Daiki's hair, but a blue that almost seemed black – and purple eyes. And that smile! Satsuki shook her head to get rid of her thoughts and shook his head. "It's nice to meet you, too, Yagami-kun."

Bah, who cares about the girls. She may have wanted a female friend, but she wouldn't be choosy. If she would find a friend in Yagami Takeru, then that would be great and she wouldn't ask for anything more.

~Ten in a Rainbow~

Shogo and Ryota reached their respective classrooms in time, with Shogo being in 2-C and Ryota being in 2-B. It surprised them at first when they found out they were in different classes – they were usually together, but Shogo supposed that Ryota had cheated using his copying ability and managed to land himself in 2-B with it.

Shogo entered his classroom, with only a minute left to spare. His female homeroom teacher tried to look at him disapprovingly, but he didn't miss that look on her face – that look the fangirls usually gave them.

"You were almost late, Nijimura-kun. Please refrain from coming to school at this time," she said. The moment she had spoken his last name, the girls in the class squealed with delight. They may not have had the other twin, but one twin was good enough for them.

"Apologies," Shogo said with a shrug. "Ryota and I had to drop off our younger siblings at Teiko Grade School."

The teacher raised an eyebrow in interest. "You have younger brothers?" She had assumed it was more brothers. She had made an acquaintance of Nijimura Isaki when she saw the black-haired woman walking through the halls after a parents' orientation. The Nijimura matriarch had jokingly complained about the fact that all she kept having were boys, and how much she would want a girl this time.

"And a sister," Shogo drawled. He wasn't particularly fond of Satsuki, nor did he dislike her. He didn't talk to her much, but he treated her civilly.

The teacher, whose named he later learned was Sakura, nodded with a smile. "Please tell your mother congratulations, for me. She's always wanted a girl."

Shogo looked at the teacher curiously, wondering about her relation to his mother. He shrugged. "Sure, why not?"

He took a seat next to his friend, Hanamiya Makoto, who was sitting beside their other friend, Imayoshi Shouichi. The girls squealed once more as they realized they had the whole gang in their class. The three boys weren't a gang in the sense that they robbed stores or bullied people – though in Makoto's and Shogo's case, they tended to manipulate people at times for fun. They were just bad boys who were friends, but that didn't stop them from being labelled as a gang.

"A sister, huh?" Shouichi said interestedly.

"She's only six." Shogo told him.

Makoto snickered. "Shouichi's a pedo."

"Am not," Shouichi huffed. "I was simply curious about it. It's the first time I've heard of a sister, since almost all of his siblings are boys."

Shogo shrugged. "She's pretty loud."

Makoto snickered again. "Oh. Oh, I see."

That earned him two punches on the head from his friends.

~Ten in a Rainbow~

Ryota, unfortunately, was five minutes late to class. He was going to be on time, but several students stopped him to ask for an autograph, and he was too nice to say 'no'. He arrived in the classroom with their homeroom teacher, a male with the name of Daisuke, who raised an eyebrow at him. "You're late."

Ryota bowed. "Sorry-ssu! I had to bring Sacchi, Tecchi, and Seicchi to school today!"

"…Who?"

"My younger siblings-ssu!" Ryota exclaimed cheerfully. "It's their first day today, and Kaa-san couldn't bring them, so she asked me and Shocchi to!"

"Ah," Daisuke-sensei said with a nod. "Well, I'll excuse you for today, then, but don't let it happen again."

Ryota nodded and sat down on his seat next to his beloved best friend, Kasamatsu Yukio. "Hi, Yucchi!"

"Ryota," Yukio said in acknowledgement. He still found it odd to call the blonde by his first name, since he had been calling him 'Kise' for a number of years. It was only until two years ago when the blonde kept whining that he snapped and told the blonde he'd call him 'Ryota', if only to get the blonde to stop attracting unwanted attention.

"I hope the kids are doing fine! Sacchi and Tecchi were pretty nervous-ssu!" Ryota told him.

"And this 'Seicchi'?"

"Maa, Seicchi's so mature!" Ryota whined.

"Isn't that a good thing?" Yukio asked curiously. He had met Ryota's other brothers before, from Shogo all the way to Atsushi, and none of them, save for Shintaro, were mature, but Shintaro was a sixth grader. This 'Seicchi', on the other hand…

"Yeah, but Seicchi's only five! I want to be his onii-san forever!" Ryota cried with crocodile tears. "I want him to call me 'Onii-san' and be cute and adorable like Sacchi and Tecchi!"

Yukio sweat-dropped. "Do you have a brother complex?"

"I don't know! Do I-ssu?" Ryota seemed to look at him, desperate for an answer.

"Go to a psychiatrist or something. Don't ask me. How am I supposed to know?"

"You have two younger brothers!"

"But I don't obsess over them calling me 'Onii-san'."

~Ten in a Rainbow~

Once school was over, Satsuki, Tetsuya and Seijuuro met up by the school gates and waited for either their brothers or their Kaa-san to arrive. They had already swapped stories about their experiences, and it seemed that the youngest twins had a more eventful day than she did. Satsuki's thoughts drifted back to Takeru, and she restrained a blush that was about to form on her face. He was nice enough to show her around, since his older brother had done the same to him when he still studied here. He was also very friendly and welcoming to her, and it seemed like all was going to be well.

"Satsuki, Tetsuya, Seijuuro," Shintaro called out as he walked near them. Behind him, Daiki was ranting to Atsushi about how Ryo kept apologizing, not realizing that Atsushi was only interested in the chips he was holding.

"Shin-nii!" Satsuki chirped happily. "Where's Ryo-nii and Sho-nii?"

"They got held up by basketball tryouts today. They didn't want to miss it." Shintaro sighed. "Come. Let's go home."

"I want to play basketball, too." Tetsuya said with a smile, earning a squeal from Satsuki.

"You're so cute, Tetsu-kun!"

"I'm sure you will do well in it, Tetsuya." Seijuuro told his twin.

"Me and Tetsu will be the best team ever!" Daiki gave his favorite brother a grin. "We'll be so cool!"

"I'll cheer for Tetsu-chin~" Atsushi said as he munched on his chips.

Shintaro looked at the chips. "Atsushi, who gave you those? I know Kaa-san only gave you one bag today."

"Muro-chin bought me one~" Atsushi said happily.

Shintaro sighed. "He spoils you too much."

"Who's 'Muro-chin'?" Daiki asked curiously.

"A friend~" Atsushi said vaguely, eating more chips.

"Well, if he can control Atsushi, then I suppose he's an acceptable person." Seijuuro mused, earning him a nod from Shintaro.

"I suppose you're right in that sense." Shintaro said as they arrived at the house. Once he opened the door, Satsuki ran inside, dragging Tetsuya and Seijuuro in with her. Daiki followed and headed towards his room, shouting something about his favorite basketball show airing today. Shintaro and Atsushi went inside last. The green-haired boy headed towards his room while his brother headed towards his sanctuary: the kitchen.

A few moments later, the door opened and Ryota's excited shout of 'We're home-ssu!' was heard. Satsuki ran down the stairs and hugged her second favorite brother. "Ryo-nii!"

"How's your day been, Sacchi?" he asked her as she dragged him to the living room and sat next to him. By then, the rest of the brothers gathered in the living room, an unspoken tradition of sitting together for a while unless they had something better to do, which they didn't since Teiko never gave homeworks on the first day of school.

"It was okay! I think I made a friend, though!"

Her response brought a smile to Ryota's face. He knew how much his little sister had wanted a friend, so he was happy that she finally got what she wanted. "Oh~? What's her name?"

"'Her'?" Satsuki repeated with a confused look before laughing. "My friend's a boy! His name's Takeru!"

At her mention of her friend being a boy, a dark atmosphere settled in the room, and the pinkette was oblivious to it. It was only when she saw the dark looks on her brothers' faces did she ask, "What's wrong?"

"A boy, you say?" Shintaro said, his glasses glistening.

"I ain't letting you near a boy!" Daiki exclaimed. He may have found his sister annoying at times, but like hell was he going to let her be friends with a boy.

"Tsk, tsk," Tetsuya let out, shaking his head disappointedly.

"If he hurts ya, ya know who to go to," Shogo cracked his fists. "You know where Mako, Shou, and I stay at."

"I'll crush him~" Atsushi said as he ate a cookie from his personal cookie jar.

"He will be defeated." Seijuuro said.

"You're too young to have a boyfriend!" Ryota wailed. "No! I won't allow it!"

"What's a 'boyfriend'?" Satsuki asked curiously.

The boys were about to explain it when the door opened and their mother arrived.

"Kaa-san!" Ryota and Satsuki said happily as they hugged their mother.

"Hello, Ryota, Satsuki," Isaki smiled at them as Shintaro and Daiki took her shopping bags with her. She entered the living room and found them all lounging about there. "Hello, boys. Atsushi, I've got some Nerunerunerune candy for you in one of those bags. You may have one bag after dinner."

Atsushi's face brightened. "Thank you, kaa-san~"

"You're welcome, dear."

"Kaa-san, what's a 'boyfriend'?"

Satsuki's question surprised Isaki as the rest of the boys looked at their mother, wondering what she would say.

"He's a boy you love very much, Satsuki." Isaki smiled at her. "Why do you ask?"

"Ryo-nii thinks Takeru-kun's my boyfriend." Satsuki said. "But I don't love him like that. He's my friend. But why did they all say they'd hurt him?"

Isaki turned her attention to the boys, who stiffened. "Why would you hurt Satsuki's friend?"

"It's his fault!" Shogo started, pointing at Ryota. "He started it!"

"What?! Why me?" Ryota panicked.

"You asked about it!"

"Tell him he's wrong!" Ryota pleaded to his others siblings, who were looking back and forth between him and Shogo. Ryota or Shogo. Shogo or Ryota.

"It's his fault," they all pointed at Ryota before dashing up the stairs along with Shogo.

Ryota sweated buckets as his kaa-san had a sweet smile on her face.

"So, Ryota. What compelled you to say that you'd hurt an innocent six year old boy?"

Behind her, Seijuuro and Shogo sent Ryota identical smirks from the staircase.

So mean~, Ryota pouted.

~Ten in a Rainbow~

Me: And that's the first chapter. Um, did you guys like it? It's actually my first time attempting to write a fanfic, so I'm not sure if I've done it alright or not. Tell me in a review? See you soon!