"I have been assigned to this city, yes. Well come, Jingyi."

There is no mockery not even a frown, though Xichen does blink slightly at the attire.

Instead, he simply holds out the 'head' of the costume.

"You... is this the work they assigned you?" He can't tell if it's better or worse than his own, but... "Do you dislike it?"

He is his sect leader. He does, actually, have to ask.