Akari Kōda, a first-year student at a private all-girls high school, begins as a rival to Eriko Takahashi’s clique before gradually assimilating into their circle. As a transfer from the school’s junior high branch, she uses her insider knowledge to advise exam-admitted peers on maneuvering through the institution’s social labyrinth, blending guidance with theatrical flair.

Her personality bursts with eccentricity and self-confidence, fueled by aspirations of acting stardom. She delights in attention-grabbing antics, sporting outlandish outfits only to swap them for standard uniforms moments later—calculated moves to etch herself into others’ memories. Interactions become impromptu performances: she strikes dramatic poses, acts out scenes mid-conversation, or playfully demands others admire her physique.

Socially, she blends exuberance with occasional impulsiveness, her antics sometimes alienating peers. Examples include draping herself over Eriko during a love hotel escapade or impulsively cupping a classmate’s chest during a bust-measuring incident. Yet beneath the theatrics lies steadfast loyalty, as she proves fiercely loyal, diving headfirst into group escapades and shared schemes.

Physically distinctive with purple hair, blue eyes, and a 1.61-meter frame, her measurements (81-59-85) often become unwitting punchlines during her performative antics. While her affluent background is subtly hinted through mannerisms and context, specifics about her family or socioeconomic status remain undisclosed. Her narrative remains anchored to the main series, with no expanded arcs in supplementary media.