Movie
Description
Ruby Kurosawa, a second-year student at Numazu High School, shines as a member of the school idol group Aqours and its sub-units CYaRon!, YYY, and AiScReam. Her signature pink hue mirrors her lively spirit, while her upbringing in a prominent family with diverse business interests—spanning fishing, real estate, and entertainment—instilled a poised sense of duty beneath her shy exterior.

As Dia Kurosawa’s younger sister, Ruby grew up emulating her sibling’s every move, their shared childhood fascination with idols like μ's fueling imaginary performances. When Dia’s disillusionment after an unsuccessful idol venture turned her against the pursuit, Ruby continued covertly studying idol culture through magazines and library resources. Her hidden passion finally found expression upon joining Aqours during her first year, spurred by Chika Takami’s invitation and Hanamaru Kunikida’s steadfast companionship.

Ruby’s extreme timidity manifests in nervous stammers and her signature exclamation “Pigii!!” when flustered, often referring to herself in third person. Though initially uneasy around males—having interacted solely with her father before Aqours—her family’s legacy fuels quiet resilience. She fiercely shields Dia from criticism and playfully prods Yoshiko Tsushima’s chūnibyō antics, embodying her hybrid catchphrase “Ganbarubii!” as she confronts challenges.

Her needlework skills and fashion enthusiasm align with her role as Aqours’ costume coordinator alongside You Watanabe. While marveling at idol aesthetics often sparks joyful clumsiness—from tearful reactions to new outfits to near-mishaps like almost tumbling into the sea—her dedication remains unwavering.

In later developments, Ruby begins asserting her desires, notably insisting on Hanamaru’s Aqours membership despite initial hesitations—a pivotal step in transitioning from reliance on Dia to self-reliance. Her bond with Hanamaru serves as a cornerstone, their mutual encouragement fueling both confidence and aspirations.

During *Over the Rainbow* events, Ruby persists with Aqours activities following the third-years’ graduation. While the group navigates school merger complexities and searches for absent seniors, documented accounts provide limited specifics regarding her individual contributions during this period.