Chizuru does take a deep breath, just in case, but thankfully it does seem like she can just breathe underwater.

Which is.. a strange sensation, that's for sure. But at least it also means that she won't drown down here while attempting to cling to Nara'a, so it's definitely for the better. Her hold on him is still relatively tight though, like she's trying to make sure they won't be separated down here. It'd be a disaster, even with Chizuru being able to breathe. There's no way she'd be able to make it back up to the surface by herself.

".. don't worry," she manages to say when Nara'a glances back at her. It's weird, being able to talk underwater like this, but there's got to be something going on with the sea today.

Something that made it glow in the first place.

"It's a little scary still, but.. I'm doing fine."

Physically, anyway. She's not drowning, and maybe that's all the girl can ask for under the current circumstances.