Charlotte Dunois enters IS Academy as a first-year transfer student, posing as "Charles" under orders from her father, CEO of France’s premier IS development firm. Concealed by a male identity to infiltrate the academy, her mission targets Ichika Orimura’s Byakushiki unit, aiming to reverse her family’s corporate decline. Born to a mistress and ignored by the Dunois family until her mother’s death, Charlotte’s exceptional IS piloting aptitude led her father to exploit her as a pawn, falsely marketing her as the world’s second male pilot. In Episode 8, she sheds her disguise, adopting her true identity as Charlotte—blonde hair now loose, uniform switched to female—and dons a modified orange-accented training suit. Her calm, kind-hearted nature contrasts with her peers’ romantic aggression; she prioritizes Ichika’s well-being over personal gain, earning his view of her as the “kindest” companion. Yet beneath her polite demeanor simmers a capacity for sharp intensity when provoked. A childhood marked by neglect and maternal loss forged Charlotte’s emotional resilience, rooted in her mother’s memory. Initially compliant with her father’s demands to single-handedly develop France’s third-generation IS, she abandons the mission after Ichika uncovers her deception, choosing trust over familial coercion. Her personal IS, Raphael Revive Custom II—a durable second-gen unit—later evolves into the dual-core Rein Carnation, mirroring her piloting growth. The *Infinite Stratos Encore: Sextet of Burning Love* OVA showcases her bolder pursuit of Ichika, devising solo summer plans disrupted by rival heroines. Tactics like initiating casual touch and navigating group interruptions reveal her strategic adaptability, balancing genuine affection with lighthearted rivalry. Her relationships evolve from rivalry to a sisterly bond with Laura Bodewig, respectful tension with Chifuyu Orimura, and steady warmth with Ichika. Preferring camaraderie over confrontation, she channels occasional jealousy into collaborative rapport. Technical mastery, including the Rapid Switch combat technique, cements her as both a strategic pilot and skilled IS mechanic. Charlotte’s arc rejects espionage-driven deceit for emotional honesty, severing her father’s influence to embrace loyalty to friends. Each narrative layer—from manipulated heir to trusted confidant—underscores her moral resolve, anchoring her growth in choices prioritizing integrity over obligation.