[He's already ringing alarm bells at the indicator of the eyes, and as soon as the voice comes out, his expression gets more suspicious. This person doesn't sound like Yuya, or talk like Yuya - from what he's seen, the one he knows would be taking this a lot worse.]

That makes two of us. You don't sound like him, or speak like him. He'd be driving himself mad worrying about Hiiragi Yuzu, for starters.

[The little bird's eyes narrow further, into much less cute little slits of anger.] Who are you?

[He sounds enough like Yuya that it has to be some form of him, and isn't making any bones about knowing Shun, but this talk about the time barrier and the aged voice isn't helping Shun's misgivings.]