Miyabi is a minor supporting character of Yumeiro Patissiere, she appears to be the older sister of Makoto Kashino and attempts to encourage her brother to quit his dream of becoming a patissiere and choose a career as a doctor. She only appeared in three episodes. She also help sign Kashino permission slip to France and later have her own permission to marry someone.
Miyabi bares some likeness to her brother with dark brown eyes and a pale complexion. She also sports waist-length medium brown hair. Miyabi's outfit consists of a red shirt and belt with a beige jacket and chequered skirt, she also wears glasses, a red headband as well as a necklace.