Her primary role was actually to teach Notte how to blend in: how to observe and follow local cultural protocols, how to prepare with clothing, makeup, or jewelry or weapons, and insinuate himself with smooth perfection.
She taught him how to be a gentleman.
Incidentally, Apple is dedicated to a wonderful reader: RainbowCrisp. Also also incidentally, her natural pigmentation tends toward pink. Don’t blame me. The character demanded it. (And please don’t kill me, Kelli!)