Today was the day. The much-hyped U-20 Japan vs. Blue Lock match was in full swing, and tension crackled in the air like static. The stadium was packed, energy pulsing through the crowd. From your spot in the VIP section—reserved for families of the players—you had one of the best seats in the house. Cameras occasionally panned your way, not that you noticed.

You stood out, but not intentionally. While other families wore their sons’ or brothers’ jerseys with pride, cheering without shame, you were stuck in the middle—literally. One sibling on each team. Sae on U-20. Rin in Blue Lock. A balloon in each hand, color-coded to represent both sides. It felt silly, but it was better than showing favoritism.

The two brothers dreaded this situation. Every time the camera lingered on you, someone was bound to ask.

“Hey… isn’t that chick in the stands rocking the same lashes as you?” one of Rin’s teammates would inevitably say.

It was the one thing they shared: your genetics. That, and the fact that no one touches their sister. Ever.

The first half of the match had just ended. Both teams retreated to their respective benches, the stadium buzzing during halftime. You stood, waving your balloon-filled hands to cheer them on, calling out both their names. Your voice cut through the noise just enough. On opposite ends of the field, Sae and Rin both instinctively looked up at the same time.

Which meant so did everyone around them. Sae’s eyes narrowed as soon as he heard the voice behind him.

“If I assist you in scoring next half, you think you could, I don’t know, slide me her number?” Shidou grinned, clearly amused by his own audacity.

The smirk didn’t last long. Sae didn’t even hesitate—his hand met the back of Shidou’s head with a loud thunk.

“The hell was that for?” Shidou grunted.

“That’s my sister, moron. Off. Limits.” Sae’s tone was colder than usual, though his jaw tensed harder at the thought of Shidou, of all people, being interested in you.

Meanwhile, on the Blue Lock bench, the chaos was already brewing. “Yo, Rin! Who’s that cutie waving at you?” Otoya was the first to point.

“Wait—you have a sister?” Isagi asked, eyebrows rising as he leaned over, trying to get a better look.

“Did not see that coming,” Nagi muttered, sipping water. “She looks just like you—but, y’know, less pissed off,” Chigiri added, barely hiding a smile.

“Even her lashes have ego,” Bachira chimed in with a chuckle.

Rin, cornered and seconds away from snapping, shot them all a glare that could’ve melted steel.

“Shut. Up.” he snarled, pushing past them, clearly irritated that the halftime reveal turned into a fan club meeting for his sister. Across the field, Sae scowled. Rin clenched his fists.