Kanako Mimura, a 17-year-old Tokyo native and aspiring idol, struggles with self-doubt and a critical view of her physique, fearing she lacks the traits needed to thrive in her dream career. Her solace lies in baking intricate sweets and candies—a passion intertwined with her insecurity about weight. Determined to transform her self-perception, she commits to rigorous training, steadily shedding both weight and hesitation. This evolution culminates in her embracing midriff-baring outfits that showcase her growing confidence, though her gentle, soft-spoken nature endures.

As a member of the idol unit Candy Island alongside Chieri Ogata and Anzu Futaba in the 2015 anime, Kanako forges bonds within the idol community. She appears in anniversary countdown artwork with peers like Uzuki Shimamura and Kana Imai, while nurturing supportive friendships with Airi Totoki, Sachiko Koshimizu, and Shizuku Oikawa. Her aesthetic—floral hair accessories and light pink themes—reflects her "cute" idol archetype.

Kanako’s journey across media remains anchored in perseverance and self-acceptance, highlighting her transition from uncertainty to embracing teamwork and personal growth. Though her backstory beyond idol pursuits goes unexplored, her narrative consistently celebrates resilience, charting her path from shy baker to assured performer within collaborative idol endeavors.