He is first seen when Bond and Tanaka having a bath, later Bond chooses her as his masseuse. During the massage she is replaced by Aki, who surprises Bond. Hera is next seen when Tanaka's girls disguise Bond as a Japanese man.
The only thing that concludes her name is when Aki orders "Eyepieces to Hera". She is the girl who applies the mockup Asian eyes to Bond's face.