|Full Name||Princess Serenity Flannel Beilschmidt|
|Ability/ies||Powers bestowed by costumes|
|First Appearance||Costume Party|
Flannel, on the surface, seems like the stereotypical princess. She's sweet, kind, a friend to all living things- everything you would expect a princess to be like. In reality, she's a bit more gritty and down-to-earth than her older sisters, taking work into her own hands rather often and fully aware that her royal prestige doesn't get her far outside the confines of her own kingdom.
Flannel is noted as the best seamstress in all her kingdom, said to have the ability to endow her garbs with magical attributes.