Fiesta exists in an odd state of being. She constantly feels lost, as she longs for the old days when times were simpler, while also looking forward to getting older, as this means more birthday parties. She is obsessed with parties, and is constantly trying to set them up. This may be due to her anxiety, or perhaps just because she finds them fun. Her nostalgia often gets in the way of her coming to grips with her mortality. Regardless, she tries to lead a good life.