Rose is sweet, cheerful, and naive.[4] With an optimistic, happy attitude, Rose cares for everyone around her, often showing much gratitude, and she likes helping them, offering snacks and drinks to her classmates during their movie project in "Horrificator". Her kindness can occasionally lead her to a downfall (as she is naive), though, such as in the episode "Timebreaker." when the title character tricks her into helping her stand up and thereby erases her from time. She is also very sensitive, easily becoming frightened to run for class representative after competitor Chloé threatens to kick her out of the scrapbooking club in "Darkblade". In "Befana", Rose can be very brave when standing up for her friends.

As Princess Fragrance, she is obsessed with Prince Ali and will stop at nothing to accomplish her goal to make him hers. She expects people to treat her like royalty, and she is particularly enraged by people who won't follow her or take Prince Ali away from her. She also likes to sing and makes everyone under her control sing.7