Miruki Amauri, a second-year junior high student, maintains a carefully maintained duality between her saccharine exterior and cunning manipulation. Her civilian guise showcases medium-length pink hair and light-blue contact lenses over natural black irises, paired with pastel outfits adorning teddy bear motifs—a deliberate rebranding from her original black-haired, working-class identity to cultivate an idealized image. Beneath superficial sweetness lies calculated arrogance, weaponizing faux innocence to manipulate peers, exemplified by coaxing rivals into surrendering coord cards through strategic flattery. This behavior originates from childhood marginalization, fueling her obsession with constructing a cuteness-centric persona to command admiration. Her aspiration to establish the "Miruki Cute Museum" crystallizes her drive to immortalize this crafted identity as a cultural legacy. As an idol, she adopts a permed pink-and-blonde bob with doll-like makeup, embodying her Cherry Sugar brand’s confectionery aesthetic. She pursues ephemeral romantic fascinations with those she deems aesthetically flawless, discarding interests abruptly upon detecting imperfections—a reflection of her transactional approach to connections and relentless perfectionism. A defining incident exposes her engineered charm-driven campaign to seize a concert’s spotlight, culminating in a public reckoning via mock trial that unveils her scheming methods. While frequently antagonistic, interactions with peers Matsuri and Amane sporadically reveal fragile insecurities tied to her dread of obscurity. Her narrative arc oscillates between reinforcing her meticulously curated persona and fleeting introspection, though her strategic charisma and relentless ambition remain immutable across all portrayals.