Bausto is a prisoner of the Gesselsaefsghast, that is why her EGO has multiple shadows in commanding position and Faust herself is depicted as someone meek, who simply exists to carve their ideas onto the board. She is bound to them instead of the company itself, hence why she doesn't wear the ''company'' clothes like everyone else does in their egos.
She was probably the one who drew those lil fishes though.