Okay so there was a group vote, Wangji wussed out, and Mingyu will be taking over pretending to be Lady Hatisse as a distraction while the rest of the group infiltrates and does whatever it is they are wont to do.

Mingyu will require 1) a cultivator or other magic practitioner proficient in disguises to make him a passable Hatisse (Zhou Zishu? Xue Yang? Who wants to put in some overtime?) 2) coaching by people more familiar with the legends on how the lady might act 3) the appropriate costume, I believe Lily offered her services?