Darjeeling commands as the composed leader of St. Gloriana Girls College’s Sensha-Dō team, steering a British Churchill VII tank with poised, chivalrous elegance. She frequently weaves proverbs and literary phrases into her speech, including twisted versions of “All’s fair in love and war” and a personal vow never to spill tea, even amidst battlefield chaos. Her unflappable composure cracks only rarely, like when a clattering teacup betrayed her shock at St. Gloriana’s tank losses during an exhibition match against Ooarai Girls Academy—a moment that revealed her deep respect for rival commander Miho Nishizumi. She spearheaded St. Gloriana’s victory under annihilation rules in that clash, though her Churchill stood alone as the sole survivor. Post-match, she extended sportsmanship by gifting tea to Ooarai and openly admired Miho’s unorthodox strategies, drawing pointed contrasts to Maho Nishizumi’s rigid methodologies. Demonstrating strategic curiosity, she later provided tactical support to Ooarai during their decisive tournament clash against Kuromorimine, driven by both strategic curiosity and a mentor’s interest in their development. Spin-off explorations reveal eccentricities steeped in literary and pop culture obsessions: staging romantic novel vignettes with lieutenant Orange Pekoe, delivering awkwardly formal “maid services,” and fixating on quintessentially English motifs like eel jelly or horse-drawn carriages. Mundane interactions often highlight her abstract perspective—puzzling over lotteries as “mystical number rituals” or dubbing amusement districts “paradise.” Preternatural coordination maintains her teacup’s equilibrium during violent tank maneuvers, while her prowess as a tabletop strategist and cardsharp spans billiards to poker. She scorns spices as vulgar intrusions, favoring tea cultivation with monastic dedication. Later chapters disclose her ambitions toward a British university. In the *Ribbon Warrior* manga, she orchestrates layered stratagems and unleashes an aura of calculated menace that silences challengers, contrasting her typical genteel facade. Born coincidentally on the Battle of Arnhem’s anniversary and hailing from a family with a younger sister, she champions British armor like the Centurion and Challenger, savors fish and chips, and collects rumors with an intensity hinting at historical intelligence traditions. This interplay of ceremonial leadership and playful idiosyncrasies solidifies her identity as a polymath tactician steeped in English tradition.