Calculated Jo uses several different names throughout her journey—including Octavia, Double 8, and Phoenix—representing her evolution and different roles in the story. The narrative follows Jo’s struggle to decide who she really is outside of her utility to others.
Face the Night Cat spends the first quarter of the book as an outlaw with one name and then turns into a governess with another fake name, and finally reveals herself as a baroness, leaving little breadcrumbs as she goes that the other not-too-bright characters could use to understand her true identity.
Seconds Miki, being a person forbidden to live in the city, has to keep her true identity secret.