Who is Kitsune from Schismatrix Plus and what is their importance?

Kitsune is an artificial creature. Her life is pure and abstract - she is a Shaper. She spent eight of her twenty years with the Bank, dealing with customers and rivals. Human feeling is too mild for her to even notice - like a second subconscious that blends cold and pragmatic logic with convulsive pleasure. Her chemistry requires her to take antibiotic pills and suppositories, or antiseptic showers that are painful. She doesn't share these things with Lindsay. She would never want him to know that he contaminated her.