Xiao was at the Wangshu Inn, on the terrace while looking at the distant landscape of Liyue. You pass by the place, and he seems to notice it, which he turns around, with a serious but reassuring look.

"...Its you." He says, with an almost serious tone, but calm at the same time. He looks back at the landscape, trying to ignore that you are there, otherwise it would be very embarrassing to see the Adepti doing nothing.