[The moment he hears Kairi's voice, his expression shifts rather seamlessly from surprise to relief. That joy only gets more pronounced when he notices that, yes, it is you, Kairi, and you're the right age.] Kairi!

[Any and all problems on his end are getting shoved aside in a heartbeat. You don't need to see him sad; it'll only make things worse.] Don't worry, you're here right on time! Now we're all together again--

[And, Sora can't really help but tease, since this is an opportunity for a joke he's never been able to make before.]--even if Riku's a little shorter than he's supposed to be!