|Alignment:||Black Moon Clan|
|Occupation:||Droid under the supervision of Esmeraude|
|First Anime Appearance:||Journey to the Future! Battle in the Space-Time Corridor|
|First Manga Appearance:||N/A|
|First PGSM Appearance:||N/A|
|English Name:||Genie of the Time Warp (DiC dub), Luax (Viz dub)|
|Actors:||Megumi Urawa (anime), Loretta Jafelice (dub)|
Ryuax was a Droid belonging to Esmeraude that appeared in episode 82. She was charged with the mission of finding Chibiusa and bringing her alive to Prince Demande. Ryuax's personality was generally cool and calculated. She assumed the form of Neo-Queen Serenity to lure Chibiusa to her, but Chibiusa was alerted to the trick because Ryuax called her "Rabbit."
She was able to attack with her hair and also had the ability to reverse the flow of time, causing any attacks by the Sailor Senshi to be returned to them. Using her Mercury Goggle, Sailor Mercury determined that after Ryuax used her powers, there was a distortion in time in which the Senshi could attack her. Chibiusa volunteered to bait Ryuax and she was saved from Ryuax's counter-attack by Tuxedo Mask. The Senshi then defeated her with Sailor Planet Attack.
Ryuax's vocal attack was called "Ryuax Power" (リュアクス・パワー).
- Ryuax also appeared in the video game Sailor Moon S: Quiz Taiketsu! Sailor Power Ketsushuu, where she was revived by the Daimon Quiz to fight the Sailor Senshi. She also appeared in Sailor Moon: Another Story, in the Black Moon Clan's UFO.