Formidable commands the seas as a Royal Navy aircraft carrier within the Azur Lane alliance. Her anthropomorphic design blends naval military elements with light gray hair styled in ribbon-tied pigtails, brown eyes, and refined attire. She embodies poised elegance during formal engagements, upholding meticulous etiquette at events like ballroom galas while guiding others with understated grace. In *Azur Lane: Slow Ahead!* Episode 6, she takes center stage during a diplomatic ball, discreetly aiding Bismarck in coaxing Tirpitz onto the dance floor. Moments of introspection lead her to retreat from bustling crowds, though situational humor punctures her composure—unwittingly consuming a pepper-spiked cupcake and triggering a crate collapse that humorously references her 23,000-tonne displacement. These incidents underscore the contrast between her dignified bearing and situational clumsiness. A brief appearance in *Queen’s Orders* Episode 1 hints at her ongoing duties, while her battlefield role showcases dual strengths: launching precision air strikes via her "Assault Carrier" ability and deploying restorative support to allies. Off-duty, she encourages peers like Javelin to embrace individuality while embodying disciplined composure herself. Despite her combat prowess, social interactions reveal a bashful reluctance for attention, as she avoids the spotlight, gravitating toward tranquil spaces.