Yata seems pretty calm when he swings his gaze around to focus on Rosethorn, at least, but his expression quickly shifts from placid interest to alarmed unease. He doesn't actually withdraw but he does shift his weight backwards.

"Huh? Why are you in my room?" The question is spoken in a sincere tone, with no apparently arrogance. It's clear that Yata really doesn't know what she's here.