Mikasa serves as a Sakura Empire battlecruiser with dark brown hair in a low ponytail, amber eyes, and distinct goat-like horns. She stands 162-166 cm tall and weighs 60 kg. Historically, she was the Combined Fleet flagship under Admiral Togo Heihachiro during the Russo-Japanese War, a legacy that designates her as the Sakura Empire's former absolute monarch. Her naval expertise manifests through tactical maneuvers like the "T-Cross Formation," echoing strategies from the Battle of Tsushima. Within daily base operations, Mikasa appears alongside other shipgirls, featuring in the anime prologue (episode 1) and prominently in "Slow Ahead!" episode 7. There, she assists in cleaning the Commander's office with Taihou and starter destroyers, during which Taihou seeks Commander-related information. Mikasa maintains authority and respect, often overseeing cross-faction events like cultural festivals or communal projects, reinforcing her unifying role. Her manga appearances span chapters 12, 16, 27.5, 29, and 80, depicting interactions across varied scenarios. In combat, she supports Sakura Empire allies through skills such as "Reborn Combined Fleet Flagship," enhancing firepower and reload capabilities as flagship, and "T-Cross Formation," granting tactical advantages to battleships and battlecruisers. As a preserved museum ship in real-world history, her legacy extends beyond military service into cultural heritage, influencing her narrative portrayal as a symbol of historical continuity.