Rose Lavillant is a student in Miss Bustier's class at Collège Françoise Dupont. In "Princess Fragrance", after Chloé Bourgeois taunts Rose and tears up her letter to Prince Ali, she is akumatized by Hawk Moth and becomes Princess Fragrance, a perfume-shooting supervillain.
In "Félix", after being fooled by Félix to think that Adrien didn't appreciate his friends, she is re-akumatized into Princess Fragrance, and, along with Reflekta and Lady Wifi, the three supervillains form The Punishers Trio, a group of supervillains who want to get revenge on Adrien, later Félix.
In "Gang of Secrets", after Marinette keeps hiding secrets from them, Rose is re-akumatized by Shadow Moth into Princess Fragrance along with Lady Wifi, Reflekta, Timebreaker and Horrificator, the five supervillains all form the Gang of Secrets, a group of supervillains who want to reveal Marinette's secrets.
In "Guiltrip", Rose receives the Pig Miraculous from Ladybug. When the Miraculous is inhabited by Daizzi, Rose becomes Pigella, a pig-themed superhero who helps Ladybug and Cat Noir ‘during particularly different missions’ in the fourth season and beyond.
In ToolHeroes Movie 3, her heroic ego is Oinky, a sharp-shooting, gun-slinging Galactic Ranger, sorta like Doom Slayer.
- Her alter ego, Oinky, is stated to be a refrence to the online game Hambo a puzzle game where a pig detective must elimenate bad guys using the weapons provided in the level.
- Her original name was Oinker, but it was change to avoid confusion with the Bubsy character of the same name.
- In Miracules Eternal, it is revealed that the Doom Slayer hates her due to her happy personality, and is often threating her.
- In addtion, she states he is the reason she hates playing Doom (despite Jeleka plays it sometimes).
- She is the second shortest student in Miss Bustier's class, after Alix.
- In "Reverser", Rose is part of the school's Art Club along with Nathaniel Kurtzberg, Juleka Couffaine, Alix Kubdel and Marinette Dupain-Cheng.
- Princess Fragrance briefly reappears in "Ladybug", but she is quickly de-akumatized.
- Princess Fragrance appears another time in "Gamer 2.0" for Gamer's powers.
- Since then, it has been confirmed that a scarlet version of Princess Fragrance will appear in the two-part special event "Heroes' Day".
- A statue of Princess Fragrance appears in the Musée Grévin in "The Puppeteer 2".
- She is one of the few students in Miss Bustier's class whose family has not yet been revealed in canon. The others being Ivan Bruel, Nathaniel Kurtzberg, and Lê Chiến Kim.
- In the past class photo seen in "Reflekta", Rose has longer, roughly shoulder-length hair.
- In the Latin American dub, Rose's name is Rosita.
- In her webisode, "Rose", it is revealed that she is the lead singer and the lyric writer of Kitty Section.