Shuri, the youngest cousin of protagonist Miho, resides in a seaside town dominated by familial tension. While Miho endures harsh treatment from her aunt and two older cousins, Shuri stands apart, offering quiet kindness and steadfast support. Defying the family’s scorn toward Miho’s ambitions, she secretly commissions her cousin to design a vibrant gown for the town’s Disco Queen contest—a hidden act of faith in Miho’s talent.

When the aunt uncovers and shreds the completed dress, Shuri reluctantly wears her aunt’s conservative design to the event. Though thwarted, her initial encouragement becomes a catalyst for Miho’s resilience, fueling her cousin’s determination to pursue creative dreams. Shuri’s subtle rebellion against the family’s cruelty weaves a thread of hope into the narrative, though her role remains peripheral to the central conflict’s resolution.

No expanded backstory or further exploration of Shuri exists in subsequent franchise materials.