Rose Lavillant is a student in Miss Bustier's class at Collège Françoise Dupont.
In "Princess Fragrance", after Chloé Bourgeois 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 a future episode, she will get re-akumatized into Princess Fragrance along with Lady Wifi, Reflekta, Timebreaker and Horrificator for an unknown reason. In Season 4, Rose will wield the Pig Miraculous and will become Pigella, a pig-themed superhero.
