She's pretty naive and a bit clueless, things that always lead her to try and change Hecate's mind. Her pureness keeps her from seeing the bad in the world, but this is pretty much what makes her a perfect angel. She's so attached to Hecate because she has been her guardian angel since she was known as Nanako.

Any information about Rachel dated before she became Nanako's guardian angel is unknown. What's sure is that after said event she spent all her day around the girl, completely hidden to her eyes due to Nanako's lack of powers. She constantly protected her from her mother and from any possible danger, doing more than what her duties actually required. When Nanako regained her powers and turned into Hecate, she was called back to heaven to watch over another human but she refused the orders and followed her protegee into hell. Even then she never lost her optimism and cheerful attitude, exhausting to no end her "little girl", how she liked to call Nanako/Hecate. Her love for her protegee is put to test during the conflict between the Demon queen and the Goddess of love, causing an internal struggle between parental love and her holy duties.