Chae Kyoung, a 16-year-old South Korean study-abroad student navigating life in Japan, steps into the spotlight as a member of idol unit PURETTY. Hailing from affluence, her lineage includes an older brother, Yun-su—designer and founder of luxury fashion label Dear Crown—while her own past as a model informs her polished instincts. Though quick to leverage wealth for solutions, she harbors a sharp eye for uncovering hidden promise where others overlook it. Effortlessly commanding attention with bold confidence, she brandishes "celebrity" as her adjective of choice for anything dazzling, dispelling worries with a breezy "Kwenchana." Her loyalty anchors tight bonds with PURETTY teammates Hye-in, So-min, Shi-yoon, and Jae-eun, while rival unit Prizmmy☆’s Ayami Ooruri shares an unexpected yet steadfast friendship. Distinguished by long, dark blue tresses and striking purple eyes, she embraces feminine ensembles that mirror her glamorous poise. Onstage, she commands Prism Shows—dynamic spectacles fusing intricate dance, figure skating precision, and high-fashion theatrics. Her journey intertwines with the franchise’s expansive lore through cross-series appearances, anchoring key episodes and films that revisit pivotal moments across the narrative universe.