Her second year in middle school, Rei Muranaka walked out of the girl's locker room with her sister Rin, tennis bag in hand.

"Ah, sis, look at them. You think we can be that good one day?" Rin asked, looking at the boys Regulars practicing and noticing the resident Golden Pair, Eiji Kikumaru and Suichiro Oishi.

"Honestly, Rin. We're already that good. We're like, the Golden Pair of the girl's circuit." Rei responded confidently. But the two of them walked over to the courts and watched in awe anyway. As the pair rallied, swiftly running from one end of the court to the other, Rei was nearly star-struck with their talent.

"Still think we're that good, sis?" Rin asked quietly.

"Well, maybe not yet. But we will be. No question about it. Why don't we go to the street courts?"

Rin groaned. "But we just got out of practice!" she complained. Rei looked pointedly at the golden pair, still rallying, fighting for the next point.

"Okay, I get it…" Rin grumbled as she trudged along behind her sister.