An Ohara

An looks to be a child of around ten, with long, wavy brown hair, green eyes, and a little green bow tucked into her hair. When the guardians first encounter her she is dressed in a pink gown of nineteenth-century Victorian styling, trimmed with a white collar and green frills. A large aqua bow sits where the collar meets the dress and a green one marks her waist, their shape recalling the bows worn on a Sailor Guardian's uniform.

Little is shown of her beyond a clear fondness for her pet. She is content to mind Rhett Butler on her own while her parents are away, and when the cat slips loose she chases after him without a second thought, a small act of loyalty that drops her straight into danger.

An is alone with Rhett Butler when the Sailor Guardians, having traced a Rainbow Crystal to her address with Mercury's supercomputer, conclude that she must be the one holding it. Their approach spooks the cat, who breaks away to help Luna after sensing the guardian was in peril, and An races after him into an alley where Zoisite ambushes her. Only when he tries to draw the crystal out does he learn she was the wrong target and that the blue cat carried it all along. The guardians carry the still-unconscious girl home and tuck her into bed, clinging to the belief that she holds the gem even as the Moon Stick refuses to respond to her, until they at last grasp the truth. By the episode's close Rhett Butler is back at her side. Her family name nods to Scarlett O'Hara of Gone with the Wind, one of several such references scattered through the episode.