[luckily for them both, sizhui just responds with a voice message too, even though his changes aren't nearly as severe as his uncle's. (or a few others, for that matter!) there is the quietest huff like he's frustrated with something, but it hardly matters and once he's sure his voice is steadied,]
Zewu-jun? Ah, yes, I... I'm fine. [a beat] Or as fine as I can be? Are you okay, though?
voice;
Zewu-jun? Ah, yes, I... I'm fine. [a beat] Or as fine as I can be? Are you okay, though?