A/N: Hello! To anyone reading out there, I'm a fairly new writer, and I made my account last year. Except, I'd never really gotten around to actually publishing any of this story because, well, I was too scared. But now I'm positive that if I want to grow as a writer, I've gotta face the fact that there are always some haters out there. Well, this story has become my own personal monster of a thing, and there are multiple OC's. Please give any criticisms you feel are necessary, and I'll take it. Thanks!

Disclaimer: I do not own Prince of Tennis, its characters, nor its plot. I only own what I've made up in my tiny little mind. :)

Kamiko was absolutely certain that she would kill Mizuki herself.

"I don't trust him." She stubbornly said, "Not one bit, niichan."

Fuji Yuuta rolled his eyes as they walked away from their win in the tournament. He had won his match surprisingly easily. He barely glanced down at her, and because of her shorter stature he only saw her dark-green black hair as they continued on to the last match of the day. Without Kamiko's help, Yuuta knew he never would have been able to be as good of a tennis player as he was now. Albeit it being against lefties (Kamiko herself was a lefty), he still managed to beat some pretty strong opponents.

"He's done nothing but help. Let him be."

Kamiko frowned as she walked beside the team, and while she happily spoke to Yanagisawa Shinya she noticed a sudden stop in her best friend.

"Yuuta-nii?" She asked as she looked around, her copper-gold eyes searched around the tournament area. Kamiko and the rest of St. Rudolph found Yuuta staring at the backs of white and blue jerseys.

"That's Seigaku?" The vice-captain asked.

"Yuuta-nii doesn't look very well." Kamiko observed.

The vice-captain nodded back and waved over Mizuki Hajime and Yanagisawa, "Look at him."

"Oi, Yuuta-kun, what's with the scary face?" Mizuki didn't hesitate to ask as he approached.

Kamiko followed soon after and latched onto Yuuta's arm, "Nii-chan?"

"I came here all this way to beat that guy." He said sternly, he was practically glaring holes at the back of a certain jersey.

"And you will. I'm going through possibilities of what their line-up will be."

"Please do." Yuuta replied to Mizuki, something to which Kamiko frowned as Mizuki spoke again.

"By the time we go against them, it will be impossible for Seigaku to beat us."

"Seigaku...?" Kamiko's head tilt, till she found a figure shorter than all of them, clad in a white and blue jersey, 'Ah~! That's why they're so familiar! Why is Yuuta-nii interested in them?'

"Come on, dane! We need to get to our match, dane!" Yanagisawa yelled, pulling Kamiko away from Yuuta, and effectively jerking both second years out of their thoughts.

Yuuta realized the way Yanagisawa was holding her, "Oi! Behave yourself!"

"Me, dane? I wouldn't do anything!"

Kamiko grasped both their arms and walked with the two boys on each side of her, "You'll all do great today!"

But Kamiko found the atmosphere tense as she accompanied Yuuta to the vending machines. He'd been mad about the lineup changes, he had been so sure that he would finally play against his brother, and when that hadn't happened Kamiko accompanied him on a trip to get a drink. When she'd turned around there was a boy, in a Seigaku, standing a few feet away from them, staring at Yuuta.

"Yuuta-nii." She whispered, tugging at Yuuta's sleeve.

The boy turned around, "What is it?"

"Someone's looking at you."

Yuuta looked around. Kamiko rarely ever was wary of strangers, hell, there were too many times Yuuta had to stop her from talking to strangers. But he understood immediately as soon as his eyes landed on the boy in front of them.

Yuuta glared.

"Let's go." He told Kamiko gruffly, and he began walking towards the stranger that Kamiko was wary of.

"You look good." The boy said, his calm demeanor made Kamiko blink at the two.

Who was this?

Yuuta continued to glare, and after a long pause he replied, "You may have avoided me this time, but I'll beat you soon."

Kamiko frowned. Yuuta was serious, yes, but his anger was insurmountable as of now. She observed the exchange between the two carefully from behind Yuuta.

"My teammate you're going against is no joke. You should be careful."

"Ha," Yuuta scoffed, "I'll crush that first year with all I have! And when I do, your next!"

Yuuta was ready to shake his fist, or step forward, or do something towards the boy, and Kamiko pulled on Yuuta's sleeve.

"Niichan!" She pleaded as she grasped his arm, "Let's go!"

Yuuta scoffed, but slowly backed away. He jerked his arm from Kamiko and started walking away from the boy, it was only when Kamiko hadn't followed that Yuuta stopped walking.

She was hesitant, at first, but when she looked up at the boy she immediately looked back down and bowed.

"Please forgive Yuuta-nii! He's very competitive... Eto... Goodbye!" Kamiko then ran up to Yuuta's side, and lightly punched him in the arm, "Your manners are getting worse by the day!"

He rolled his eyes, and when they were out of earshot, he whispered.

"That's the guy I'm gonna beat one day. One day soon."

Kamiko hadn't heard, and smiled as she saw the tennis courts coming into view, "Don't worry, niichan, this'll be a good match! And hopefully everything will go great!"

It was soon evident to Kamiko that everything going great was not a part of the plan. And she hated Mizuki all the more after the end of the Doubles 1 game.

"Mizu-chan," She said to him. She greeted everyone with the -chan honorific, it was a small quirk that St. Rudolph had needed to adjust too, "Your plan sucks."

"We'll see about that. That first miscalculation about that snake boy was a fluke." Mizuki replied without worry.

"So long as you stay away from-"

"Kamiko, shut up, will you?" Yuuta pulled her back and covered her mouth so she wouldn't finish her sentence, and when she stopped struggling Yuuta put his hand down.

"But Ryo-chan is-" She looked around suddenly, and found Yuuta walking away from her towards the court, "Yuuta-nii~!"

"Stop calling me that!"

"I will when you promise not to use it!"

Her small outburst was heard by Seigaku, and Momoshiro Takeshi poked Echizen Ryoma for answers.

"Oi, you know her, Echizen?"

Ryoma looked away from Kamiko and back at the match at hand.

"The real question is why she's calling Fuji-senpai's brother her brother."

His redirect worked, and Momo curiously tried finding explanations with the freshmen while an oblivious St. Rudolph didn't even bother to try hearing the other team's conversation.

"Use what, that? I'm fine. And as far as I'm concerned you've got nothing productive to say about it." Yuuta asked.

Kamiko reached up to poke Yuuta's cheek and placed her hands on her hips, looking up at him doubtfully, "Ne, ne, did Mizu-chan take away your brain? Because you sound just like him after I beat you."

Kamiko was surprised that Yuuta hadn't even managed to figure it out, or rather, he didn't care what the consequence was so long as it helped beat his brother. His brother...

'So Yuuta-nii's own niichan is... Oh!' Kamiko curiously looked across the courts at the figures clad in white and blue, and found herself wondering where the resemblance was. It was then that she started piecing together everything.

Why Yuuta was so determined to be better than his brother, why he learned so much and trained so much, and even why he moved schools. Kamiko was curious as to how one could always have that content smile on his face, and why his younger brother was so angry. That face that she'd just bowed to in apology, actually...

"Niichan!" She exclaimed in a silent whisper, "I didn't know that your brother attended Seigaku!'

"You should know- you're transferring there." Yuuta muttered, "And stop callin' me niichan." Yuuta had noticed long before of the stares the two of them were receiving because of her insisted nickname.

Kamiko giggled, "You're just bitter that I'm leaving St. Rudolph!"

"Aw, but otouto and I will miss you. You were fun to play with, dane!" Even Yanagisawa loved to tease Yuuta with fake family honorifics.

He pet Kamiko's head, and she shrugged herself away from the two with a pout, "I'm not a dog!"

"Stop talking about that fluke of a match, then!" Yuuta insisted.

Kamiko grinned happily as she saw a certain look in Yuuta's eyes, it wasn't anger. No matter how hard Yuuta tried he could never be angry at Kamiko, but he was irked at how she had to announce to everyone that he'd lost in a match against her.

After the initial shock of the Golden Pair having lost, spectators and teammates alike looked at the other pair in question, and Yanagisawa wrapped an arm around Kamiko's shoulder and pointed at her.

"This is the reason why Yuuta-kun became the lefty-killer, dane! He's trying to beat the first lefty to beat him, dane!"

The girl was wide eyed at the amount of attention directed around her, and Yuuta suddenly noticed something a bit off.

"Oi!" He yelled at Yanagisawa, "What did I just say about touching her?!"

"Ah! I didn't notice, dane! Sorry, Yuuta-kun, I'll lay off now."

"You have your own match to attend, Kamiko. You should go." Yuuta warily took his eyes off of his retreating teammate and looked at Kamiko.

Kamiko frowned at what Yuuta had told her, and rolled her eyes.

"Forever the serious one, dane." Yanagisawa shook his head.

Kamiko agreed, "Mhm." She pulled at Yuuta's left sleeve gently, looking up at him with a seriousness that Yuuta knew was unbecoming of her, "Please don't use that."

"Kamiko."

She pulled at his sleeve harder this time, "Please? Promise me you won't unless it's absolutely necessary... Even that might be-"

"Fine."

Kamiko looked grateful, and happily nodded. She rounded the corner as Yuuta headed to the court, and soon realized she was right behind the gates that were nearest Ryoma's back. She yelled over to her fellow Echizen.

"Ryo-chan!" She called, the capped boy looked at her in irritation. Anything getting in the way of him playing was irritating.

"Who's that?" Tomoka Osakada asked jealously.

Kamiko heard Yuuta's angry protest.

"Don't you dare!" He yelled at her.

Kamiko grinned, happily ignoring Yuuta, "Be careful, Ryo-chan. Yuuta-nii won't listen to me, but you'll see it! Don't let him get hurt." That last part sounded oddly sweet, yet threatening enough for Ryoma to step back, albeit in his off-handed way.

"Uhn." Ryoma casually grunted, that lone response caused Kamiko to smile happily and run away.

"Her attitude is beginning to convince even me that we might be related." Yuuta muttered under his breath.

Ryoma looked at his new opponent with an agreeing gleam, "Your chaperone didn't tell me to go easy on you. Don't expect a break."

"Why you-"

"You're Fuji's younger brother, ne?" Ryoma asked with a cocky smirk.

Both teams were appalled at Ryoma's question. After all, they'd all seen Yuuta's anger at having that question even thought about.

"I wonder which one of you two is better. This'll be fun."

The two boys readied their stances, and were both determined to win.