Mila
From her brief observations of the Gale Clan while running through their base, Mila noticed a few things. One, the clan was very hierarchal. Those with greenish blond hair and yellow eyes were like nobles among the masses, likely true descendants of the clan, but they only made up around an eighth of the force. Two, the Pink Ursa was truly an outlier, looking Caucasian while pretty much everyone else had features common in South Asia on Earth. Finally, three, they weren't very well disciplined.
Everyone was wearing artifacts, but they weren't uniform, a sign Nana Xara had taught her meant the clan likely didn't have many of their own craftsmen, instead buying things from outside. There hadn't been enough guards, allowing her to easily sneak in as only one had a detection skill and she'd killed him. And, probably the biggest sign, almost no one had a weapon near them while they were eating, which had allowed her to kill twenty soldiers with relative ease.