Tamaki Kurihara attends Kirarigaoka Middle School as Mirai Momoyama's classmate. She displays chestnut brown hair styled in straightened pigtails with partially messy bangs brushed leftward, complemented by tuscany yellow rounded eyes bearing a single eyelash at each corner. Her surname "Kurihara" (栗原) fuses "kuri" (chestnut), reflecting her hair hue, and "hara" (field/meadow). Her hiragana-written given name "Tamaki" (たまき) carries potential translations like "bracelet" or "jewel tree."

She consistently appears alongside classmates Konomi Shinkaki and Hokuto Imozaki, forming a recurring trio observable together since the series' debut episode. Their interactions denote a close friendship, with Konomi and Hokuto explicitly designated her best friends.

Tamaki remains confined to school settings in background or supporting roles. Her documented presence excludes involvement in idol activities, streaming channels, or interactions with primary characters like Miracle☆Kiratts or Meltic StAr. She similarly lacks participation in events such as the Jewel Auditions, Princess Cup, or Pri☆Chan Land, and shows no appearances in films, OVAs, spin-offs, or character development across the series' three seasons.