Noriko Shiina, a 13-year-old Osaka native born October 10, stands 147 cm tall with dark brown eyes and rosewood-hued hair. Her blood type O and measurements of 76-55-79 cm reflect her petite frame. Growing up in a family of confectionery bakers, she cultivates an unwavering devotion to donuts, infusing them into unconventional dishes like shaved ice and keeping them close at hand. Her mission centers on spreading happiness through these treats, inspired by their power to spark joy.

Cheerful and nurturing, she brightens interactions by sharing sweets but guards claimed donuts fiercely—her sunny disposition falters only when someone takes a donut she's claimed, revealing flashes of protective intensity. Her collaborative spirit thrives across idol units: Sweetches (with Kanako Mimura, Airi Totoki, Shizuku Oikawa, Nono Morikubo), Yellow Lily (alongside Yuka Nakano, Misato Manaka, Kana Imai, Yukari Mizumoto), and the subunit Mellow Yellow within Yellow Lily (Yuka, Yukari). She further connects through LINK-RING (Atsumi Munakata, Yuzu Kitami) and the Ponytail Maiden Alliance friend group (Nagisa Aino, Yuko Hori, Midori Mizuno, Tomoka Wakabayashi).

Rooted in Osaka’s cultural landscape, she shares her birthday with franchise peer Hibiki Ganaha and stands among nine Osaka-born idols. Her idol endeavors seamlessly intertwine pastry passion with performance, fostering bonds that amplify both her confectionery zeal and team-driven artistry.