AN: I decided to write this in a new account since I always read about Tezuka being Ryoma's older brother. I love that kind of story too but I wanted to take it at a different angle this time. Many had already commented before how Ryoma and Atobe were almost similar in terms of arrogance, so yeah, I decided to try this one out.

Enjoy.

OooOoOooO

Chapter One

"What? But the Interschool Practice–"

There was an exasperated sigh at the other line at his demanding tone.

"Keigo, just this once, alright? This is a very important investment for the company and you know we can't just leave your brother's welfare to some nameless stranger to take care of him. Would you rather we do–"

"Of course not!" He squawked indignantly with a bit of incredulity. "But we have Neil and Catherina! They're not some nameless strangers, I grew up with them."

"Catherina is in New York right now, taking care of that penthouse your father had set up for us this coming vacation. And you know Neil is old, as much as we trust him, he may not be able to handle your brother. You know how he is. Or maybe we can leave him with your uncle? I haven't seen brother for–"

"No," Keigo cut her off rather brusquely with a terse voice. "I will never leave my brother to that lunatic's clutches, never." He stated decisively with the slightest bit of contempt.

There was laughter that could be heard from the other line and he slightly scowled.

Uncle Nanjirou was downright insane. Keigo would never even think of leaving his impressionable six year old brother with that man. Didn't his mother remember that his uncle was a notorious pervert and proud of it? He would fight tooth and nail before letting the unthinkable happen.

"He has Rinko-chan to keep him in line," The amused voice of his mother reminded him. "But, is that an agreement I hear?" She teased lightly and Keigo could just hear the triumphant grin in her voice.

"Do I have a choice?" He spat out rather bitterly with a touch of defeat.

"Keigo," His mother sighed exasperatedly. "Just this once, alright, sweetie? Besides, your brother misses you. You haven't seen each other for two months. We promise we'll make it up to you this Christmas. But your father and I can't think of anyone else to look after him this time and you are Ryoma's older brother." She told him sincerely with a bit of guilt.

But he also knew that his mother was using the pity card to finally make him give in. Keigo frowned since he knew he had already caved in to his mother's wishes when she talked to him like that.

"Fine," Keigo grunted and knew that he already lost. "But I will have to bring him with me during the Interschool Practice this upcoming week. Ore-sama can't leave his brother to the servants of this house. Ryoma will just have to watch him dominate the court." He continued pompously with a smirk.

The woman giggled from the other line.

"Ryoma would love to," She prompted happily. "Goodness, you two may both dislike your uncle but he has influenced you well in his obsession."

"What? It isn't because of him!" Keigo responded huffily. "I am already fascinated with the sport before I even met him,"

"Fine, fine," She laughed at him amusedly. "But thank you for agreeing to this, Keigo. I promise that we'll make it up to you after we finish dealing with this investment. Your father sends his regards to you, by the way."

"Of course," He waved his hand in dismissal, even if his mother couldn't see it. "When's the brat arriving?" He questioned nonchalantly.

"In two days, we let him bring his cat with him." She shared as she obviously tried to smother a giggle. "Take care of him, Keigo. You know how your brother is. You're both too alike sometimes for your father's peace of mind."

His eyebrow twitched.

"I will, mother." Keigo deadpanned. "I'll take care of him. This is Ore-sama you're talking about!" He declared arrogantly.

"I know, I know," She sighed again but with a bit of longing this time. "I have to go, sweetie, I'll call again next time to check on you two. Love you, sweetheart."

He rolled his eyes exasperatedly.

"Of course,"

And he hung up. Seriously, his mother always babied him. He was just glad that his brother received the most of it for being the youngest. Speaking of the brat, Keigo silently contemplated how he was going to bully his teammates into helping out in babysitting his brother – for there was no other term for it, no matter what his mother said – and surviving through the other school's scrutiny for bringing the tiny brat with him.

Though, his mother was right, his brother was too much like him for Keigo's peace of mind.

O.o.O

"Atobe?" Yuushi called as he, along with Kabaji and Shishido, watched their captain pace in his large living room. This had been the first time they had truly seen Atobe disconcerted since the teen tended to act as narcissistic as possible to feign nonchalance. In fact, Atobe had ordered them to come to his mansion instead of attending school to commence their tennis practice. They were waiting for the others to arrive and they were currently looking at said captain as he worked himself up into agitation.

"Quiet, Oshitari," Atobe hissed in order as he paced further.

"But why the hell did you call us here?" Shishido questioned impatiently as he glared at Atobe.

There was a tense silence as Atobe stopped his incessant pacing.

Before he whirled on them.

The teen opened his mouth to say something but was cut off by the curt knock on the door to the living room. All of them faced the doorway as the old butler of the mansion entered courteously, bowing his head slightly at Atobe as he did so.

"Young master," The butler cleared his throat slightly. "Your brother has arrived," He informed Atobe.

Yuushi and Shishido's eyes widened as they stared at their captain while Kabaji noticeably brightened. Yuushi narrowed his eyes as he pushed his glasses up the bridge of his nose, eyeing Atobe contemplatively. He didn't know about his other teammates, but he had already met Atobe's brother.

"What are you waiting for?" Atobe suddenly demanded with a haughty glare. "Send him in! Don't make Ore-sama's brother wait any longer!"

"Of course," The butler bowed once again before exiting the room.

"You didn't tell me that your brother's already in Japan? I thought he was with your parents," Yuushi merely commented as he stared at Atobe who was eyeing the door expectantly.

"Mother decided that I should watch over him," Atobe merely replied sullenly and Yuushi understood.

"You have a brother?" Shishido questioned incredulously as he stared at the captain with disbelief while Hyoutei's tensai could comprehend the reaction – meeting Atobe junior hadn't exactly been a walk to the park either.

Atobe sniffed as he glared at the other contemptuously.

"What's that supposed to mean?" He asked suspiciously at the skeptism.

Before Shishido could retort scathingly, the door to the room banged open and the other occupants – saved for Kabaji – jumped in surprise. Round, hazel eyes roamed the room before landing on Atobe. A short kid eyed them curiously and blinked. He was dressed in a loose silk red shirt and black knee-length shorts, a white cap that was facing sideways, a can of grape ponta in his small hands where he was drinking from a straw, and the most amusing sight was the cat curiously poking its head out from his backpack.

The kid merely raised a small hand in Atobe's direction in greeting, still sipping his soda from a straw.

"What did Ore-sama tell you?" Atobe hissed as he strode to the younger boy who was unfazed at the annoyed expression. "Do not barge in his business unannounced!"

But the boy just continued to sip his drink.

"Well?"

"Mom told you to expect me," The kid shrugged unrepentantly. "And Richard did tell you I'm already here,"

"Say that again?" Atobe's eyebrow twitched as he crouched down to the boy's eyelevel.

But the boy smirked.

"Yada," He stated childishly.

Unexpectedly, on Yuushi and Shishido's part, Atobe smirked back and roughly ruffled the boy's dark green-tinted locks almost affectionately – making Shishido eyeball Atobe with astonishment and a little awe. The boy merely scowled and swatted away the teen's hand with irritation.

"You're still an insufferable brat," Atobe remarked dryly.

"And you're still a monkey king, nii-san." The boy merely retorted smugly.

Yuushi saw Shishido grin, as if he decided he liked the younger boy, which he knew would change after getting to know him. He was Atobe junior, after all.

Atobe's eyebrow twitched again as he ruffled the boy's hair with too much force than necessary.

"Didn't I tell you to stop calling me with that plebeian nickname?" The teen asked almost sweetly with a hidden threat behind his words while the other danced out of his reach.

"Yada," The younger boy deadpanned at him before continuing to sip his drink.

Yuushi decided to step in.

"It's been a while, Ryoma-kun," He stated as he stepped forward to make himself be noticed to the boy.

The boy – Atobe Ryoma – eyed him with wide hazel eyes. Of course, the last time they met, the boy had been merely five and more troublesome than Atobe in a good day. Yuushi wondered how Gakuto would fair in meeting this boy, seeing as he wasn't fond of teenaged Atobe. At the thought, suddenly, the reason they had been called here – the tennis team regulars – was very clear and Yuushi stared at his captain with dread.

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