As Rena Rouge, Alya retains most of her personality traits such as her undying loyalty, trustworthiness, and curiosity. She is supportive of her allies, whom she gets very excited about working with, causing her to be a bit of a scatterbrain. A fast learner, she takes quickly to her abilities.
- Rena Rouge's identity was later revealed to be Alya at the Miraculous panel at New York Comic Con 2016.
- It was confirmed again at the panel at San Diego Comic Con 2016, along with revealing her debut to be in Season 2.
- Her superhero name was revealed at a TFOU press conference on August 31, 2017.
- The final concept design of Rena Rouge was revealed at the New York Toy Fair 2017 as a preview for a fashion doll and action doll of her.
- Rena Rouge means "Red Fox" in French, as Rena is short for renarde, which is French for "fox," and rouge is the French word for "red."
- Alternatively, rena could also be referring to the word for "fox" in Haitian-Creole.
- In the Italian dub, she is called Volpe Rossa which also means "Red Fox".
- In the dub for Portugal, she is called "Fox Rouge" which, like Cat Noir, is a combination between the English "fox" and French "rouge" for "red".
- According to a synopsis on Le Figaro, Master Wang Fu would call on Rena Rouge.
- As revealed in "Syren", she still gets called on by Ladybug to be Rena Rouge from time to time, but she always gives back the Fox Miraculous when she is done.
- Similar to Cat Noir, Rena Rouge's ears and tail are fake, but it is unknown if they respond to her mood and emotions, or if they can enhance senses.