Saint-like being in planet of La Metal.

[Queen Millennia Series]
In the anime TV series, she calls Yukino Yayoi by the name of Andromeda Promethium. She stays hidden and appears as ghostly like figure until near the end.

In the Manga, she is the director of La Metal. Her appearance is similar to of a mere human child, she looks younger than as she appears in the movie version, but she has lived for over million years. She tend to float in the air and move without having to move her legs. She has golden halo-like object on her head and bottom of her feet.

In the Movie, her appearance is like of a young child, but her voice is of a woman. She doesn't have a Iris on her eyes, which makes it looks like she is wearing a mask. Her goal is to destroy mankind and bring eternal spring to La Metallians. She expected Promethium, the Millennial Queen to cooperate, but when she realizes that Promethium betrayed her, she gives Fara total command of the La Metal military force. When Promethium tries to convince Larela to realize that killing innocent human is wrong, Larela attacks and seriously injures Promethium. When Fara saw his lover hurt, he became rather disturbed. Near the end, Larela orders Fara to activate a machine which will alter Promethium's mind and judgement, but Hajime interferes and shoots Fara, stopping the process. When Hajime was about to get killed by Larela, dying Promethium gets up and shoots Larela, saving Hajime from death. Larela is weakened. Fara who is also dying, destroys Larela's halo-like object, which prevents her from floating. Larela finally dies when the spirits of the previous Millennial Queens attacks her.

[Space Symphony Maetel]
Despite her age, her appearance is like of a child with white hair and unusual black eyes. Her voice is also of a young child. She uses a floating mechanical chair to move.

When Maetel begs to Larela to tell her about the secret of the planet La Metal, Larela decides to help her only if she pass the test. Larela tests her courage by creating virtual people that forces Maetel to defend herself by killing them. Then she creates virutal Promethium, Maetel's mother. After Maetel kills her virtual mother, Larela decides to help Maetel, but Maetel was emotionally hurt after the test. Larela reveals the secret of the planet La Metal and even goes far as giving her own life to destroy the planet La Metal that Promethium cherishes.