TV-Series
Description
Koyori Tanemura holds the class representative role in Hinata Hoshino's elementary school, first in grade 5-3 and advancing to grade 6-2. Her small frame stands at 139 centimeters, featuring long red hair swept into upward-pointing twin tails secured by black fringe clips and vivid cerise eyes. She consistently wears her navy blue school dress with long white sleeves and a white collar, paired with brown shoes and white ankle socks.

Driven by the meaning of her name—combining "small" (小) and "rely on" (依)—she fiercely aspires to be dependable. Yet her innate clumsiness undermines this goal, causing frequent stumbles on steps or bumps, mishaps in cooking or crafts, and occasional infirmary visits. When classmates persistently seek help from her best friend Kanon Konomori instead of her, Koyori displays visible jealousy, underscoring her insecurity. Despite setbacks, she radiates energetic cheerfulness, relentlessly pursuing leadership roles and assisting friends. Her enthusiasm sometimes veers into bossiness during group efforts.

Koyori shares an unbreakable childhood bond with Kanon Konomori, whom she affectionately calls "Kano." They appear inseparable during school activities and outings, attending summer festivals in yukatas and joining trips like one to Hana Shirosaki’s grandmother’s mountain home, where they rafted and picked grapes. Their connection deepens through emotionally charged moments: holding hands in the anime’s opening sequence and Koyori’s playful marriage proposal in manga chapter 91, later clarified as pretend.

Beyond Kanon, Koyori admires Miyako Hoshino, addressing her as "big sister" and delighting in Miyako’s cosplay events. She maintains friendly but occasionally tense interactions with classmates like Noa Himesaka, who teases her for accepting Kanon’s subtle support during leadership challenges.

Contrasting her clumsiness, Koyori excels in sewing and costume creation, matching Kanon’s skills. She contributed significantly to a school play’s costumes despite minor accidents like needle pricks. Her leadership shines through energetic class-project proposals, aligning with her ambitious future goal: becoming Prime Minister to achieve large-scale reliability.

Additional details include her February 20 birthday (Pisces zodiac), blood type B, dislike of animals due to their negative reactions toward her, and aversion to uneven paths. An early character design iteration used the name "Hazuki" with nearly identical features. She debuted in manga chapter 21.