[continuing from here!] @lowbloodpressurelord
Kyouhei was about to apologize for being so snappy toward a total stranger, knowing more than anyone else that sometimes people just zoned out and it couldn’t be helped, when he was backhanded with that claim.
It took a moment to settle in. More than a moment. Maybe two moments and a half. No matter how long it took, shock still held him in its clasped hands as he mulled over what a stranger could gain from doing something like this.

“Aha, that’s… funny?” He looked around, trying the spot reaction cams or photographers or anything that would reveal this as a set-up. As some sort of elaborate prank. “Ah, unless you’re serious, in that case.”
If this person was being serious about them being siblings, what did that mean about the life he’d lived up until now? Sure, he’d never seen a birth certificate or an adoption certificate (there’d never been a reason to) but that didn’t necessarily mean….
Kyouhei cleared his throat and met the stranger’s dark eyes, once again. “I know who my parents are? So you might… have the wrong person… uh, unless… you’re completely serious? Unmistaken?”
It was a difficult thing to fathom. That he might have more family out there, that someone put effort into finding him in such a situation… it was. Strange and a bit prickly. But he wouldn’t think about it anymore unless this person was absolutely certain.
“My name is Kyouhei… Kyouhei Allemand.” Hearing himself say his last name was weird. Nonetheless, the student continued. “Are you sure I’m the person you’re looking for?”