Eeeep! QAQ I am so sorry for the extremely late update! I'll work harder to keep a more steadier update time and try to make each chapter longer! .

By the way, my tumblr is fujo-hanacchi! I mainly reblog knb, Haikyuu!, and Pandora Hearts!

To be completely honest, Aomine Daiki had thought that having a new addition to his family would make his days even more hectic- but he thought wrong. Aomine Yuki was different from them- she was much more behaved and obedient. She barely cried at all since she was born, and joy did so for the important things, like her diaper being full, when she was hungry, and the occasionally crying to be put to sleep.

Aomine had heard stories of his childhood- of how disobedient, wild, and annoying he was.

"You'd cry for almost anything!" his mother had told him.

"And your tantrums left us awake for the whole night. You were constantly hungry too."

So that's why he didn't expect this. He looked at the messages he received.

Daiki! This meeting is running late, so I'll be home late. QAQ Tell Yuki I love her! -Papa

Daiki, two new patients just arrived, so I'll be home late. I need you to bathe Yuki, feed her, change your diaper, and then tuck her in. If you are not done by the time I'm home, I guarantee that I will make your life a living hell. -Mom

Aomine scowled at his phone before pocketing it. He looked down at Yuki, who stared back at him- and sighed.

Cooking: Aomine doesn't have a damn clue how to prepare baby food.

He huffed as he brought his phone out again.

The teenager then searched up how to prepare baby food. He skimmed through the first website and used his newly found knowledge to prepare the baby's bottle.

Only to have Yuki spit it all over him.

Aomine frowned as his sister wrinkled her face, and stuck out her tongue. He couldn't be as bad as Satsuki, could he? Without a second thought, he placed the bottle to his lips and drank the milk. He spat it out too. It was extremely cold and there where small bits inside- probably from his failure at stirring the powder. He blanched. If he had been paying attention to his younger sister, he would have seen the glare she sent him while wiping her mouth with her sleeves.

The teenager bit the inside of his mouth and started to think. Did he have any friends who knew how to cook? And then it hit him. He reached for his phone but halted. Should he? If he asked him of all people, wouldn't he have to owe him? Wouldn't that mean he was stupider than him of all people?

And the he remembered his mother's words. 'If you are not done by the time I'm home, I guarantee that I will make your life a living hell.' He picked up the phone and dialed a number.

The choice was easy. If it was either his pride or his mother's wrath, screw pride.

"Hello?" The voice on the other end answered.

Aomine took a deep breath. Here goes nothing.

"Hey, Bakagami." he responded and then winced. That probably wasn't the best way to start a conversation when he needed to ask a favor from him.

"Shut it Ahomine, what do you want?" he snapped.

Aomine could feel the irritation laced in his voice. But the urge to get this conversation over quickly was stronger than the urge to tease him.

"Do you now how to make milk for babies?" he blurted quickly.

"What? Why would I know that? Why are you even ask-"

He shut the phone before Kagami could even finish his question.

He decided to call Momoi's mom over- which led to Satsuki tagging along.

"Wow. You have the nerve to complain about my cooking when you're the one that's horrible. Hmph. What nerve!" she huffed, crossing her arms.

He simply glared daggers at her. There's a difference between being horrible and never trying before.

Momoi's mom asked him and Satsuki to bathe Yuki while she made the milk.

"Come on now, Yu-chan! Let's get you washed up and cleaned!" Momoi hummed, genuinely pleased.

The raven's eyes widened and when Aomine reached for her, she started kicking and smacking him- shaking her head rapidly.

"Oww! Stop that!" Aomine hissed, pulling his hands away.

Momoi- who had been just quietly staring at them spoke up. "Dai-chan, I think it's best if I washed her myself. She probably doesn't want to take a bath with you because she's a girl." she reasoned.

"Pssht, yeah right. She didn't seem to have any problems when the old man was washing her." he rose an eyebrow at Yuki, who had a small pout on her face and rolled his eyes.

"Whatever. Then you wash her."

Momoi smiled at Aomine before turning back to the baby. "Let's go take your bath now, Yu-chan!"

Yuki's eyes widened once again. Her cheeks flushed red and she started shaking her head quickly.

Aomine, who saw the whole scene, arched a brow. What is up with his baby little sister?

Momoi's frowned down at the baby and then turned to Aomine. "Was she always so against taking a bath? Or is it because she hates me?" She bit her lips.

"She's usually okay with my parents," He explained, then stopped.

Momoi wasn't looking at him anymore, she was now looking down at the baby with a frown and her brows furrowed. She practically looked like a kicked puppy, which caught Aomine off guard. He scratched his neck awkwardly, the blunenette could only hope that she didn't cry.

And then he huffed. "She doesn't hate you. She's probably just embarrassed, I mean look at her cheeks, she's blushing."

The truth was, Aomine had no clue if his sister hated the pink head or not- he just couldn't bear to see the look on her face.

"Oh!" She looked down at the still red baby and smiled. "Don't worry! There's nothing to get embarrassed about! Now let's go, we need to change you out of that dirty shirt and wash you!"

And then Yuki flat out cried. Momoi looked at her with panic and confusion- and Aomine had had enough.

He turned around and took out his phone. He dialed his mother and waited for her to pick up. She didn't and he reached her voicemail. He gripped his phone harder than intended and gritted his teeth. "Hey hag! Your daughter won't take her bath! She was throwing a tantrum when I reached for her and when Satsuki offered, she started crying! I shouldn't be the one who's in trouble when its your daughter who's the one who's being a pain in the butt! So my punishment if I don't get her in bed by the time you come home is invoked!" He shut the phone roughly and huffed.

Later when Momoi's mother had rushed in with the milk bottle to check on them, the baby stopped crying. She placed the milk bottle in front of Yuki's face and she reached for it. When Momoi's mother offered to wash her, Yuki just smiled.

Momoi and her mother decided to pass her earlier tantrums as her being hungry while Aomine just glared at the raven.

After bath time, Momoi and her mother left, leaving Aomine to clean up the mess he had made in the kitchen and him to tuck Yuki in.

He watched as she slept, her small chest rising slowly and then falling back down. Rise. And then fall. Rise. And then fall. He poked her cheek. She frowned, her eyebrows drawing together, and he smiled, his anger from earlier dissipated.

"Good night, Yuki."

He groaned as his phone beeped, notifying him that someone had sent him a message.

He blindly felt at his drawer before he found his phone. He opened it and brought it close to his face- wincing from the sudden brightness of the phone's screen.

It was from Midorima:

Leos are in 3rd place. Their lucky item is a red scarf.

Aomine huffed. It has been a whole month ever since that four-eye kappa started sending him these messages.

He kindly typed back a "Fuck you." before snapping his phone shut and collapsed back onto the bed. He wasn't even a Leo!

So Aomine did what most people do when they encounter something that they didn't understand: He ignored it. For a whole month-and he could do it forever.

He closed the mail and looked at the time. 11:02 A.M. Saturday.

...Way too early to get up. He proceeded to throw the blanket over himself once more.

And then the doorbell rang.

"DAMN IT!"

.

Aomine growled as he stalked down the stairs, slamming the front door open in anger only to do a double take.

"Kagami?!"

"Yo." he greeted.

Aomine speed walked to the gate. "What they hell are you doing here at fucking 11 o'clock! A.M!"

"We came to visit your sister," replied a calm, monotonic voice.

Aomine jumped, his heart beating fast, and pupils dilated. "Woah! Dammit Tetsu! Stop doing that!" he shouted.

"Why the hell would you want to see my sister, anyways?" he looked at the two suspiciously, eyes narrowing.

"Kagami-kun was under the impression that you had a baby." Kuroko replied, successfully ignoring the glare and hushed whispers Kagami sent his way, "Shut up, Kuroko! How the hell was I suppose to know that he had a younger sister-no one told me!"

Aomine stared at Kagami in disbelief. "You thought I got a girl pregnant?!"

Kagami just grinned sheepishly while rubbing the back of his neck. "Well, you did just suddenly phone me on how to prepare baby food, so i thought. . ." he trailed off, laughing awkwardly.

The blunette whipped his head to face Kuroko. "Wait a second, who told you that I had a younger sister?!"

Just on cue, something pink slammed into Kuroko.

"Tetsu-kun!" Momoi greeted, rubbing their cheeks together affectionately.

"Momoi-san told me. And yes, how foolish Kagami-kun was, believing that you had gotten a woman pregnant when we all know that no one would ever want to do it with a ganguro like you."

Kagami burst into laughter while Momoi covered her mouth, but a small "pfft," escaped. Aomine just glared at him, narrowing his eyes.

Satsuki, who was still head over heels for Kuroko, invited Kagami and him inside his house.

"Don't I get a say in this?" he grumbled, and the others either didn't hear him, or chose to ignore him. Probably the latter.

"This is where Yu-chan sleeps!" she announced, opening the door then spreading her arms.

Aomine Yuki was currently inside the crib, staring at the baby mobile right on top of her, which consisted of different animal plushies.

She tilted her head towards their direction and frozed-her mouth opening to form a small 'o,' and her blue orbs widening.

Kuroko raised a curious brow and looked at his friends. No one else looked affected by the baby's actions so he wondered if he was just imagining her unusual actions.

At eight months old, Aomine Yuki cried even less. But it wasn't a bad thing-in fact, it was for a good reason too.

She had finally started crawling. Cue the applause please.

Ever since the beginning, all she ever cried for was for her basic needs. Now that she could crawl, all she needed to do was waddle over to her parents and then signal them what she wanted.

If it was a diaper change, she'd point to her hip, if she wanted to eat, she'd hold an imaginary bottle in front of her, and if she wanted to sleep, well, she'll just fall asleep, so that one didn't change actually.

Aomine watched as his sister crawled across the ground, reaching for his basketball that he left lying on the floor.

He watched as her chubby small hands grip the ball tightly. She then proceeded to slam it against the floor-which resulted to the basketball slamming against her face, making her back collide with the ground.

Aomine winced. "That's gonna bruise," he muttered, quickly walking over to the baby to place her on his thighs. To his surprise, she wasn't bawling her eyes out-well, at least not yet. He could see the tears at the corner of her eyes and her face was redder than usual, she was also biting down on her trembling lips.

Aomine sighed and pressed Yuki to his chest.

"Cry." he demanded. No baby should ever have to hold in pain. Pain was something that would heal faster if you let yourself free.

Her shaking figure stilled. And then she proceeded to shake her head against his chest.

Aomine gritted his teeth before lifting the baby away from him and into the air.

optional: Her tears were smudged across her red face-but that was it. She had completely stopped trembling.

"Why," he started, "are you so against relying on me?" he asked bluntly, staring at her to see if her expression would change. When it didn't, he continued on.

"And also, a few months ago, when Satsuki asked to bathe you, why didn't you let her?"

Yuki's face flushed bright red for some reason, but Aomine didn't care; he was too busy trying to get a point through to his sister.

"You had hurt her, you know?"

She stared at him for a moment before finally giving him a grim expression he didn't know that she actually had it in her to make, almost like she was telling him: I know, I don't need you to tell me. But I can't change that.

There was complete silence until he spoke up, his voice sounding loud inside the completely quiet and still room.

"She thinks that you hate her."

The raven looked back up, blue eyes full of denial and a little panic. And Aomine couldn't help but smile, thinking that he had at least learnt that she didn't actually hate his childhood friend-making himself for feeling less guilty.

"Then next time she offers, accept. Or she's gonna cry."

Yukio turns bright pink, and Aomine could see some sighs of hesitation, and then reluctantly shook her head in resignment

The teenager smiled, and ruffled her hair, earning him a glare. He chuckled and wiped the remaining tears from her cheeks away.

He couldn't resist pinching her cheeks, earning him a scowl this time, and a weak slap. Aomine looked at her amused. He didn't know she could make a face like that. He smirked. He must be rubbing off on her. And then he paled. If his mom had found out that her daughter could make a face like that, she'll kill him!

"Hey you! Never make that face again, you hear? Never!" the blunette repeated, looking around to see if his mother was around.

If he hadn't looked away, he would've noticed the small smirk Yuki was wearing. But when his gaze turned back to her, she had her head tilted to the side, blue eyes full with innocence.

As he got up, she curled her fingers onto his jeans. Aomine looked down at her with an arched eyebrow. What did she want now?

She seemed hesitant at first before she pointed to herself. Then slowly place a finger at the end of her mouth and stretched it upwards, and then pointed at him. She quickly turned around and crawled away to the kitchen.

Aomine blinked. And then blinked, and blinked once again, before slapping his cheeks. It wasn't a dream- she really had just 'smiled' at him.

He couldn't help but grin widely.

He felt like Yuki had finally accepted him.