Alice Carroll emerges as a prodigious Undine talent recruited by Orange Planet, her extraordinary rowing abilities eclipsing peers despite beginning at the Pair rank. Initially portrayed as introverted and socially aloof, she habitually emphasizes remarks with her signature "dekkai." Bonds with companions Akari and Aika slowly temper her reserve, though she remains challenged by emotional distance in relationships.

Her striking features include luminous aquamarine eyes and waist-length emerald hair—sleek in adolescence, later evolving into voluminous waves with layered texture. She dons Orange Planet’s seasonal uniforms: a summer combination of cropped blouse and flowing ankle-length skirt, contrasted by winter’s cape-adorned jacket, long sleeves, and slate-toned tights.

Central to her evolution is conquering vocal self-doubt through mentor Athena’s tutelage, redirecting focus from technical precision to expressive joy. Professionally, she shatters norms by ascending directly from Pair to Prima, bypassing Single entirely—a historic leap cementing her "Orange Princess" (Twilight Princess) epithet.

Her origin story traces a precocious youth balancing scholastic rigor with Undine training. While early antisocial tendencies isolate her, collaborative drills with Akari and Aika spark reciprocal growth. Later narratives depict a young adult embodying polished elegance and bolstered confidence, yet retaining her essential quiet intensity.

Notable connections include a layered mentorship with Athena blending reverence and authentic warmth, plus a spirited rivalry with Aika, who teases her as "kōhai-chan." Her trajectory charts measured social integration while preserving a thoughtful, disciplined essence.