Sophie Hōjō, a 15-year-old Paprika Private Academy student, shines as the cool-type idol of SoLaMi♡SMILE. Her magenta-pink waist-length hair and sharp purple eyes shift dramatically in "Fancy Mode," where disheveled locks obscure her gaze, a gray sweat suit replaces stage attire, and lethargic murmurs of "Pushu~" betray her low blood pressure and fragile health. This unpolished state belies her perceptiveness, enabling her to notice overlooked emotional nuances and behavioral inconsistencies. Consuming a Red Flash—a pickled plum—ignites her transformation into a charismatic performer, radiating elegance during concerts.

Originally micromanaged by Usagi, Sophie transitions to Kuma’s guidance, gradually integrating Fancy Mode’s disheveled aesthetics into daily life while reserving her polished idol identity for the stage. Her evolving self-acceptance manifests in PriPara through hybrid hairstyles blending both personas. A veteran idol since childhood, she debuted in Parajuku City’s PriPara before relocating to Paprika Academy, residing in Pride Tower Hills under her sister Cosmo’s guardianship.

Her fan club, led by Sadako and Chanko, champions both her personas, while friendships with Reona West and Gaaruru reveal her protective instincts during crises. She nearly attained Divine Idol status through nine consecutive concerts before external interference halted the achievement. Collaborative performances with Laala and Mirei mark her shift from solo work to collective growth, further expanded through roles in CelePara Opera Company and spin-offs like *PriPara Nurses*.

Notable trivia ties her July 30 birthday to Pickled Plum Day, hints at Brazilian roots through her surname, and connects her "So" namesake to solfège symbolism, complementing unitmates’ directional-themed names. Sophie’s narrative traces her journey from isolation under strict management to embracing authenticity, balancing physical limitations with intuitive insights, and nurturing bonds that redefine her artistry and identity.